Home / 1,128,520.15-1,692,631.89-329,882.42

Finding the Fourth Proportional to 1,128,520.15, 1,692,631.89 and 329,882.42

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Solution

The fourth proportional to 1,128,520.15, 1,692,631.89 and 329,882.42 is: 494,780.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,520.15 : 1,692,631.89 = 329,882.42 : x
  2. Step 2: Convert to fraction form
    1,128,520.15/1,692,631.89 = 329,882.42/x
  3. Step 3: Cross multiply
    1,128,520.15x = 1,692,631.89 × 329,882.42
  4. Step 4: Simplify right side
    1,128,520.15x = 558,369,508,273.95
  5. Step 5: Solve for x
    x = 558,369,508,273.95/1,128,520.15
  6. Step 6: Final answer
    x = 494,780.27

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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.