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Finding the Fourth Proportional to 607,545.80, 911,318.70 and 253,251.80

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Solution

The fourth proportional to 607,545.80, 911,318.70 and 253,251.80 is: 379,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,545.80 : 911,318.70 = 253,251.80 : x
  2. Step 2: Convert to fraction form
    607,545.80/911,318.70 = 253,251.80/x
  3. Step 3: Cross multiply
    607,545.80x = 911,318.70 × 253,251.80
  4. Step 4: Simplify right side
    607,545.80x = 230,793,101,148.66
  5. Step 5: Solve for x
    x = 230,793,101,148.66/607,545.80
  6. Step 6: Final answer
    x = 379,877.70

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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.