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Finding the Fourth Proportional to 614,480.52, 847,981.14 and 342,545.40

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Solution

The fourth proportional to 614,480.52, 847,981.14 and 342,545.40 is: 472,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,480.52 : 847,981.14 = 342,545.40 : x
  2. Step 2: Convert to fraction form
    614,480.52/847,981.14 = 342,545.40/x
  3. Step 3: Cross multiply
    614,480.52x = 847,981.14 × 342,545.40
  4. Step 4: Simplify right side
    614,480.52x = 290,472,038,793.76
  5. Step 5: Solve for x
    x = 290,472,038,793.76/614,480.52
  6. Step 6: Final answer
    x = 472,711.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.