Home / 1,245,672.80-1,719,028.48-672,712.96

Finding the Fourth Proportional to 1,245,672.80, 1,719,028.48 and 672,712.96

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Solution

The fourth proportional to 1,245,672.80, 1,719,028.48 and 672,712.96 is: 928,343.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,672.80 : 1,719,028.48 = 672,712.96 : x
  2. Step 2: Convert to fraction form
    1,245,672.80/1,719,028.48 = 672,712.96/x
  3. Step 3: Cross multiply
    1,245,672.80x = 1,719,028.48 × 672,712.96
  4. Step 4: Simplify right side
    1,245,672.80x = 1,156,412,737,105.10
  5. Step 5: Solve for x
    x = 1,156,412,737,105.10/1,245,672.80
  6. Step 6: Final answer
    x = 928,343.89

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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.