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Finding the Fourth Proportional to 765,265.80, 1,147,137 and 365,439.16

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Solution

The fourth proportional to 765,265.80, 1,147,137 and 365,439.16 is: 547,795.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,265.80 : 1,147,137 = 365,439.16 : x
  2. Step 2: Convert to fraction form
    765,265.80/1,147,137 = 365,439.16/x
  3. Step 3: Cross multiply
    765,265.80x = 1,147,137 × 365,439.16
  4. Step 4: Simplify right side
    765,265.80x = 419,208,781,684.92
  5. Step 5: Solve for x
    x = 419,208,781,684.92/765,265.80
  6. Step 6: Final answer
    x = 547,795.00

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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.