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Finding the Fourth Proportional to 887,265.78, 1,331,008.92 and 347,452.32

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Solution

The fourth proportional to 887,265.78, 1,331,008.92 and 347,452.32 is: 521,221.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,265.78 : 1,331,008.92 = 347,452.32 : x
  2. Step 2: Convert to fraction form
    887,265.78/1,331,008.92 = 347,452.32/x
  3. Step 3: Cross multiply
    887,265.78x = 1,331,008.92 × 347,452.32
  4. Step 4: Simplify right side
    887,265.78x = 462,462,137,194.69
  5. Step 5: Solve for x
    x = 462,462,137,194.69/887,265.78
  6. Step 6: Final answer
    x = 521,221.65

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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.