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Finding the Fourth Proportional to 637,397.78, 879,575.52 and 350,861.90

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Solution

The fourth proportional to 637,397.78, 879,575.52 and 350,861.90 is: 484,171.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,397.78 : 879,575.52 = 350,861.90 : x
  2. Step 2: Convert to fraction form
    637,397.78/879,575.52 = 350,861.90/x
  3. Step 3: Cross multiply
    637,397.78x = 879,575.52 × 350,861.90
  4. Step 4: Simplify right side
    637,397.78x = 308,609,538,140.69
  5. Step 5: Solve for x
    x = 308,609,538,140.69/637,397.78
  6. Step 6: Final answer
    x = 484,171.03

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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.