Home / 754,397.21-1,040,989.42-432,120.89

Finding the Fourth Proportional to 754,397.21, 1,040,989.42 and 432,120.89

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Solution

The fourth proportional to 754,397.21, 1,040,989.42 and 432,120.89 is: 596,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,397.21 : 1,040,989.42 = 432,120.89 : x
  2. Step 2: Convert to fraction form
    754,397.21/1,040,989.42 = 432,120.89/x
  3. Step 3: Cross multiply
    754,397.21x = 1,040,989.42 × 432,120.89
  4. Step 4: Simplify right side
    754,397.21x = 449,833,277,793.61
  5. Step 5: Solve for x
    x = 449,833,277,793.61/754,397.21
  6. Step 6: Final answer
    x = 596,281.73

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Double scale
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1.5x scale

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.