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Finding the Fourth Proportional to 657,325.53, 985,978.17 and 337,292.78

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Solution

The fourth proportional to 657,325.53, 985,978.17 and 337,292.78 is: 505,933.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,325.53 : 985,978.17 = 337,292.78 : x
  2. Step 2: Convert to fraction form
    657,325.53/985,978.17 = 337,292.78/x
  3. Step 3: Cross multiply
    657,325.53x = 985,978.17 × 337,292.78
  4. Step 4: Simplify right side
    657,325.53x = 332,563,313,048.72
  5. Step 5: Solve for x
    x = 332,563,313,048.72/657,325.53
  6. Step 6: Final answer
    x = 505,933.97

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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.