Home / 718,534.20-1,077,801.30-494,585.40

Finding the Fourth Proportional to 718,534.20, 1,077,801.30 and 494,585.40

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Solution

The fourth proportional to 718,534.20, 1,077,801.30 and 494,585.40 is: 741,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,534.20 : 1,077,801.30 = 494,585.40 : x
  2. Step 2: Convert to fraction form
    718,534.20/1,077,801.30 = 494,585.40/x
  3. Step 3: Cross multiply
    718,534.20x = 1,077,801.30 × 494,585.40
  4. Step 4: Simplify right side
    718,534.20x = 533,064,787,081.02
  5. Step 5: Solve for x
    x = 533,064,787,081.02/718,534.20
  6. Step 6: Final answer
    x = 741,878.10

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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.