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Finding the Fourth Proportional to 657,248.70, 986,310.45 and 372,938.70

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Solution

The fourth proportional to 657,248.70, 986,310.45 and 372,938.70 is: 559,656.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,248.70 : 986,310.45 = 372,938.70 : x
  2. Step 2: Convert to fraction form
    657,248.70/986,310.45 = 372,938.70/x
  3. Step 3: Cross multiply
    657,248.70x = 986,310.45 × 372,938.70
  4. Step 4: Simplify right side
    657,248.70x = 367,833,337,019.42
  5. Step 5: Solve for x
    x = 367,833,337,019.42/657,248.70
  6. Step 6: Final answer
    x = 559,656.24

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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.