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Finding the Fourth Proportional to 657,489.20, 986,233.80 and 608,281.70

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Solution

The fourth proportional to 657,489.20, 986,233.80 and 608,281.70 is: 912,422.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,489.20 : 986,233.80 = 608,281.70 : x
  2. Step 2: Convert to fraction form
    657,489.20/986,233.80 = 608,281.70/x
  3. Step 3: Cross multiply
    657,489.20x = 986,233.80 × 608,281.70
  4. Step 4: Simplify right side
    657,489.20x = 599,907,972,461.46
  5. Step 5: Solve for x
    x = 599,907,972,461.46/657,489.20
  6. Step 6: Final answer
    x = 912,422.55

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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.