Home / 861,854.50-1,292,781.75-270,878.50

Finding the Fourth Proportional to 861,854.50, 1,292,781.75 and 270,878.50

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Solution

The fourth proportional to 861,854.50, 1,292,781.75 and 270,878.50 is: 406,317.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,854.50 : 1,292,781.75 = 270,878.50 : x
  2. Step 2: Convert to fraction form
    861,854.50/1,292,781.75 = 270,878.50/x
  3. Step 3: Cross multiply
    861,854.50x = 1,292,781.75 × 270,878.50
  4. Step 4: Simplify right side
    861,854.50x = 350,186,781,267.38
  5. Step 5: Solve for x
    x = 350,186,781,267.38/861,854.50
  6. Step 6: Final answer
    x = 406,317.75

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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.