Home / 431,947.82-646,593.03-281,864.95

Finding the Fourth Proportional to 431,947.82, 646,593.03 and 281,864.95

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Solution

The fourth proportional to 431,947.82, 646,593.03 and 281,864.95 is: 421,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,947.82 : 646,593.03 = 281,864.95 : x
  2. Step 2: Convert to fraction form
    431,947.82/646,593.03 = 281,864.95/x
  3. Step 3: Cross multiply
    431,947.82x = 646,593.03 × 281,864.95
  4. Step 4: Simplify right side
    431,947.82x = 182,251,910,454.82
  5. Step 5: Solve for x
    x = 182,251,910,454.82/431,947.82
  6. Step 6: Final answer
    x = 421,930.38

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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.