Home / 861,516.72-1,188,873.54-539,404.56

Finding the Fourth Proportional to 861,516.72, 1,188,873.54 and 539,404.56

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Solution

The fourth proportional to 861,516.72, 1,188,873.54 and 539,404.56 is: 744,366.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,516.72 : 1,188,873.54 = 539,404.56 : x
  2. Step 2: Convert to fraction form
    861,516.72/1,188,873.54 = 539,404.56/x
  3. Step 3: Cross multiply
    861,516.72x = 1,188,873.54 × 539,404.56
  4. Step 4: Simplify right side
    861,516.72x = 641,283,808,739.34
  5. Step 5: Solve for x
    x = 641,283,808,739.34/861,516.72
  6. Step 6: Final answer
    x = 744,366.06

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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.