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Finding the Fourth Proportional to 522,089.60, 783,134.40 and 495,132.80

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Solution

The fourth proportional to 522,089.60, 783,134.40 and 495,132.80 is: 742,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,089.60 : 783,134.40 = 495,132.80 : x
  2. Step 2: Convert to fraction form
    522,089.60/783,134.40 = 495,132.80/x
  3. Step 3: Cross multiply
    522,089.60x = 783,134.40 × 495,132.80
  4. Step 4: Simplify right side
    522,089.60x = 387,755,528,248.32
  5. Step 5: Solve for x
    x = 387,755,528,248.32/522,089.60
  6. Step 6: Final answer
    x = 742,699.20

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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.