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Finding the Fourth Proportional to 528,502.60, 792,753.90 and 521,504.20

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Solution

The fourth proportional to 528,502.60, 792,753.90 and 521,504.20 is: 782,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,502.60 : 792,753.90 = 521,504.20 : x
  2. Step 2: Convert to fraction form
    528,502.60/792,753.90 = 521,504.20/x
  3. Step 3: Cross multiply
    528,502.60x = 792,753.90 × 521,504.20
  4. Step 4: Simplify right side
    528,502.60x = 413,424,488,416.38
  5. Step 5: Solve for x
    x = 413,424,488,416.38/528,502.60
  6. Step 6: Final answer
    x = 782,256.30

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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.