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Finding the Fourth Proportional to 424,047.28, 635,915.40 and 124,450.96

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Solution

The fourth proportional to 424,047.28, 635,915.40 and 124,450.96 is: 186,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,047.28 : 635,915.40 = 124,450.96 : x
  2. Step 2: Convert to fraction form
    424,047.28/635,915.40 = 124,450.96/x
  3. Step 3: Cross multiply
    424,047.28x = 635,915.40 × 124,450.96
  4. Step 4: Simplify right side
    424,047.28x = 79,140,282,008.78
  5. Step 5: Solve for x
    x = 79,140,282,008.78/424,047.28
  6. Step 6: Final answer
    x = 186,630.80

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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.