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Finding the Fourth Proportional to 482,818.20, 724,227.30 and 315,701.40

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Solution

The fourth proportional to 482,818.20, 724,227.30 and 315,701.40 is: 473,552.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,818.20 : 724,227.30 = 315,701.40 : x
  2. Step 2: Convert to fraction form
    482,818.20/724,227.30 = 315,701.40/x
  3. Step 3: Cross multiply
    482,818.20x = 724,227.30 × 315,701.40
  4. Step 4: Simplify right side
    482,818.20x = 228,639,572,528.22
  5. Step 5: Solve for x
    x = 228,639,572,528.22/482,818.20
  6. Step 6: Final answer
    x = 473,552.10

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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.