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Finding the Fourth Proportional to 657,861.76, 987,093.44 and 357,892.80

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Solution

The fourth proportional to 657,861.76, 987,093.44 and 357,892.80 is: 537,002.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,861.76 : 987,093.44 = 357,892.80 : x
  2. Step 2: Convert to fraction form
    657,861.76/987,093.44 = 357,892.80/x
  3. Step 3: Cross multiply
    657,861.76x = 987,093.44 × 357,892.80
  4. Step 4: Simplify right side
    657,861.76x = 353,273,635,103.23
  5. Step 5: Solve for x
    x = 353,273,635,103.23/657,861.76
  6. Step 6: Final answer
    x = 537,002.84

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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.