Home / 721,066.46-994,961.17-415,083.71

Finding the Fourth Proportional to 721,066.46, 994,961.17 and 415,083.71

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Solution

The fourth proportional to 721,066.46, 994,961.17 and 415,083.71 is: 572,751.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,066.46 : 994,961.17 = 415,083.71 : x
  2. Step 2: Convert to fraction form
    721,066.46/994,961.17 = 415,083.71/x
  3. Step 3: Cross multiply
    721,066.46x = 994,961.17 × 415,083.71
  4. Step 4: Simplify right side
    721,066.46x = 412,992,177,274.65
  5. Step 5: Solve for x
    x = 412,992,177,274.65/721,066.46
  6. Step 6: Final answer
    x = 572,751.89

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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.