Home / 519,488,411.60-779,232,617.40-322,217,512.40

Finding the Fourth Proportional to 519,488,411.60, 779,232,617.40 and 322,217,512.40

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Solution

The fourth proportional to 519,488,411.60, 779,232,617.40 and 322,217,512.40 is: 483,326,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,488,411.60 : 779,232,617.40 = 322,217,512.40 : x
  2. Step 2: Convert to fraction form
    519,488,411.60/779,232,617.40 = 322,217,512.40/x
  3. Step 3: Cross multiply
    519,488,411.60x = 779,232,617.40 × 322,217,512.40
  4. Step 4: Simplify right side
    519,488,411.60x = 251,082,395,559,568,928
  5. Step 5: Solve for x
    x = 251,082,395,559,568,928/519,488,411.60
  6. Step 6: Final answer
    x = 483,326,268.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.