Home / 759,726.38-1,139,083.35-418,330.61

Finding the Fourth Proportional to 759,726.38, 1,139,083.35 and 418,330.61

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Solution

The fourth proportional to 759,726.38, 1,139,083.35 and 418,330.61 is: 627,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,726.38 : 1,139,083.35 = 418,330.61 : x
  2. Step 2: Convert to fraction form
    759,726.38/1,139,083.35 = 418,330.61/x
  3. Step 3: Cross multiply
    759,726.38x = 1,139,083.35 × 418,330.61
  4. Step 4: Simplify right side
    759,726.38x = 476,513,432,646.34
  5. Step 5: Solve for x
    x = 476,513,432,646.34/759,726.38
  6. Step 6: Final answer
    x = 627,217.17

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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.