Home / 712,891.38-1,071,009.39-672,540.42

Finding the Fourth Proportional to 712,891.38, 1,071,009.39 and 672,540.42

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Solution

The fourth proportional to 712,891.38, 1,071,009.39 and 672,540.42 is: 1,010,388.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,891.38 : 1,071,009.39 = 672,540.42 : x
  2. Step 2: Convert to fraction form
    712,891.38/1,071,009.39 = 672,540.42/x
  3. Step 3: Cross multiply
    712,891.38x = 1,071,009.39 × 672,540.42
  4. Step 4: Simplify right side
    712,891.38x = 720,297,104,974.54
  5. Step 5: Solve for x
    x = 720,297,104,974.54/712,891.38
  6. Step 6: Final answer
    x = 1,010,388.29

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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.