Home / 765,514.42-1,145,463.25-638,841.96

Finding the Fourth Proportional to 765,514.42, 1,145,463.25 and 638,841.96

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Solution

The fourth proportional to 765,514.42, 1,145,463.25 and 638,841.96 is: 955,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,514.42 : 1,145,463.25 = 638,841.96 : x
  2. Step 2: Convert to fraction form
    765,514.42/1,145,463.25 = 638,841.96/x
  3. Step 3: Cross multiply
    765,514.42x = 1,145,463.25 × 638,841.96
  4. Step 4: Simplify right side
    765,514.42x = 731,769,987,737.97
  5. Step 5: Solve for x
    x = 731,769,987,737.97/765,514.42
  6. Step 6: Final answer
    x = 955,919.27

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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.