Home / 765,144.48-1,147,707.36-344,123.04

Finding the Fourth Proportional to 765,144.48, 1,147,707.36 and 344,123.04

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Solution

The fourth proportional to 765,144.48, 1,147,707.36 and 344,123.04 is: 516,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,144.48 : 1,147,707.36 = 344,123.04 : x
  2. Step 2: Convert to fraction form
    765,144.48/1,147,707.36 = 344,123.04/x
  3. Step 3: Cross multiply
    765,144.48x = 1,147,707.36 × 344,123.04
  4. Step 4: Simplify right side
    765,144.48x = 394,952,545,753.57
  5. Step 5: Solve for x
    x = 394,952,545,753.57/765,144.48
  6. Step 6: Final answer
    x = 516,180.35

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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.