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Finding the Fourth Proportional to 858,478.92, 1,287,841.26 and 267,549

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Solution

The fourth proportional to 858,478.92, 1,287,841.26 and 267,549 is: 401,361.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,478.92 : 1,287,841.26 = 267,549 : x
  2. Step 2: Convert to fraction form
    858,478.92/1,287,841.26 = 267,549/x
  3. Step 3: Cross multiply
    858,478.92x = 1,287,841.26 × 267,549
  4. Step 4: Simplify right side
    858,478.92x = 344,560,641,271.74
  5. Step 5: Solve for x
    x = 344,560,641,271.74/858,478.92
  6. Step 6: Final answer
    x = 401,361.80

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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.