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Finding the Fourth Proportional to 555,851.25, 834,892.65 and 331,649.19

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Solution

The fourth proportional to 555,851.25, 834,892.65 and 331,649.19 is: 498,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,851.25 : 834,892.65 = 331,649.19 : x
  2. Step 2: Convert to fraction form
    555,851.25/834,892.65 = 331,649.19/x
  3. Step 3: Cross multiply
    555,851.25x = 834,892.65 × 331,649.19
  4. Step 4: Simplify right side
    555,851.25x = 276,891,471,109.45
  5. Step 5: Solve for x
    x = 276,891,471,109.45/555,851.25
  6. Step 6: Final answer
    x = 498,139.51

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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.