Home / 831,726.68-1,147,781.40-469,149.44

Finding the Fourth Proportional to 831,726.68, 1,147,781.40 and 469,149.44

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Solution

The fourth proportional to 831,726.68, 1,147,781.40 and 469,149.44 is: 647,425.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,726.68 : 1,147,781.40 = 469,149.44 : x
  2. Step 2: Convert to fraction form
    831,726.68/1,147,781.40 = 469,149.44/x
  3. Step 3: Cross multiply
    831,726.68x = 1,147,781.40 × 469,149.44
  4. Step 4: Simplify right side
    831,726.68x = 538,481,001,052.42
  5. Step 5: Solve for x
    x = 538,481,001,052.42/831,726.68
  6. Step 6: Final answer
    x = 647,425.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.