Home / 861,290.72-1,188,572.52-479,311.04

Finding the Fourth Proportional to 861,290.72, 1,188,572.52 and 479,311.04

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Solution

The fourth proportional to 861,290.72, 1,188,572.52 and 479,311.04 is: 661,444.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,290.72 : 1,188,572.52 = 479,311.04 : x
  2. Step 2: Convert to fraction form
    861,290.72/1,188,572.52 = 479,311.04/x
  3. Step 3: Cross multiply
    861,290.72x = 1,188,572.52 × 479,311.04
  4. Step 4: Simplify right side
    861,290.72x = 569,695,930,676.62
  5. Step 5: Solve for x
    x = 569,695,930,676.62/861,290.72
  6. Step 6: Final answer
    x = 661,444.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.