Home / 754,787.76-1,132,144.65-281,436.09

Finding the Fourth Proportional to 754,787.76, 1,132,144.65 and 281,436.09

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Solution

The fourth proportional to 754,787.76, 1,132,144.65 and 281,436.09 is: 422,140.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,787.76 : 1,132,144.65 = 281,436.09 : x
  2. Step 2: Convert to fraction form
    754,787.76/1,132,144.65 = 281,436.09/x
  3. Step 3: Cross multiply
    754,787.76x = 1,132,144.65 × 281,436.09
  4. Step 4: Simplify right side
    754,787.76x = 318,626,363,610.42
  5. Step 5: Solve for x
    x = 318,626,363,610.42/754,787.76
  6. Step 6: Final answer
    x = 422,140.34

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Double scale
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1.5x scale

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.