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Finding the Fourth Proportional to 624,250.21, 861,147.92 and 379,169.76

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Solution

The fourth proportional to 624,250.21, 861,147.92 and 379,169.76 is: 523,061.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,250.21 : 861,147.92 = 379,169.76 : x
  2. Step 2: Convert to fraction form
    624,250.21/861,147.92 = 379,169.76/x
  3. Step 3: Cross multiply
    624,250.21x = 861,147.92 × 379,169.76
  4. Step 4: Simplify right side
    624,250.21x = 326,521,252,657.98
  5. Step 5: Solve for x
    x = 326,521,252,657.98/624,250.21
  6. Step 6: Final answer
    x = 523,061.50

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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.