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Finding the Fourth Proportional to 500,245.01, 750,772.11 and 387,658.25

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Solution

The fourth proportional to 500,245.01, 750,772.11 and 387,658.25 is: 581,800.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,245.01 : 750,772.11 = 387,658.25 : x
  2. Step 2: Convert to fraction form
    500,245.01/750,772.11 = 387,658.25/x
  3. Step 3: Cross multiply
    500,245.01x = 750,772.11 × 387,658.25
  4. Step 4: Simplify right side
    500,245.01x = 291,043,002,311.41
  5. Step 5: Solve for x
    x = 291,043,002,311.41/500,245.01
  6. Step 6: Final answer
    x = 581,800.91

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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.