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Finding the Fourth Proportional to 458,363.70, 687,545.55 and 363,885.30

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Solution

The fourth proportional to 458,363.70, 687,545.55 and 363,885.30 is: 545,827.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,363.70 : 687,545.55 = 363,885.30 : x
  2. Step 2: Convert to fraction form
    458,363.70/687,545.55 = 363,885.30/x
  3. Step 3: Cross multiply
    458,363.70x = 687,545.55 × 363,885.30
  4. Step 4: Simplify right side
    458,363.70x = 250,187,718,725.42
  5. Step 5: Solve for x
    x = 250,187,718,725.42/458,363.70
  6. Step 6: Final answer
    x = 545,827.95

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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.