Home / 908,581.56-1,253,825.78-500,721.18

Finding the Fourth Proportional to 908,581.56, 1,253,825.78 and 500,721.18

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Solution

The fourth proportional to 908,581.56, 1,253,825.78 and 500,721.18 is: 690,985.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,581.56 : 1,253,825.78 = 500,721.18 : x
  2. Step 2: Convert to fraction form
    908,581.56/1,253,825.78 = 500,721.18/x
  3. Step 3: Cross multiply
    908,581.56x = 1,253,825.78 × 500,721.18
  4. Step 4: Simplify right side
    908,581.56x = 627,817,121,572.41
  5. Step 5: Solve for x
    x = 627,817,121,572.41/908,581.56
  6. Step 6: Final answer
    x = 690,985.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.