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Finding the Fourth Proportional to 519,885.60, 779,828.40 and 367,670.40

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Solution

The fourth proportional to 519,885.60, 779,828.40 and 367,670.40 is: 551,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,885.60 : 779,828.40 = 367,670.40 : x
  2. Step 2: Convert to fraction form
    519,885.60/779,828.40 = 367,670.40/x
  3. Step 3: Cross multiply
    519,885.60x = 779,828.40 × 367,670.40
  4. Step 4: Simplify right side
    519,885.60x = 286,719,819,759.36
  5. Step 5: Solve for x
    x = 286,719,819,759.36/519,885.60
  6. Step 6: Final answer
    x = 551,505.60

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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.