Home / 915,260.55-1,372,876.11-284,174.97

Finding the Fourth Proportional to 915,260.55, 1,372,876.11 and 284,174.97

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Solution

The fourth proportional to 915,260.55, 1,372,876.11 and 284,174.97 is: 426,257.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,260.55 : 1,372,876.11 = 284,174.97 : x
  2. Step 2: Convert to fraction form
    915,260.55/1,372,876.11 = 284,174.97/x
  3. Step 3: Cross multiply
    915,260.55x = 1,372,876.11 × 284,174.97
  4. Step 4: Simplify right side
    915,260.55x = 390,137,027,372.97
  5. Step 5: Solve for x
    x = 390,137,027,372.97/915,260.55
  6. Step 6: Final answer
    x = 426,257.89

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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.