Home / 861,132.26-1,291,988.75-381,294.54

Finding the Fourth Proportional to 861,132.26, 1,291,988.75 and 381,294.54

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Solution

The fourth proportional to 861,132.26, 1,291,988.75 and 381,294.54 is: 572,070.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,132.26 : 1,291,988.75 = 381,294.54 : x
  2. Step 2: Convert to fraction form
    861,132.26/1,291,988.75 = 381,294.54/x
  3. Step 3: Cross multiply
    861,132.26x = 1,291,988.75 × 381,294.54
  4. Step 4: Simplify right side
    861,132.26x = 492,628,250,609.72
  5. Step 5: Solve for x
    x = 492,628,250,609.72/861,132.26
  6. Step 6: Final answer
    x = 572,070.37

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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.