Home / 431,569.95-647,327.79-132,026.73

Finding the Fourth Proportional to 431,569.95, 647,327.79 and 132,026.73

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Solution

The fourth proportional to 431,569.95, 647,327.79 and 132,026.73 is: 198,031.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569.95 : 647,327.79 = 132,026.73 : x
  2. Step 2: Convert to fraction form
    431,569.95/647,327.79 = 132,026.73/x
  3. Step 3: Cross multiply
    431,569.95x = 647,327.79 × 132,026.73
  4. Step 4: Simplify right side
    431,569.95x = 85,464,571,351.83
  5. Step 5: Solve for x
    x = 85,464,571,351.83/431,569.95
  6. Step 6: Final answer
    x = 198,031.79

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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.