Home / 861,853.50-1,292,780.25-270,877.50

Finding the Fourth Proportional to 861,853.50, 1,292,780.25 and 270,877.50

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Solution

The fourth proportional to 861,853.50, 1,292,780.25 and 270,877.50 is: 406,316.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,853.50 : 1,292,780.25 = 270,877.50 : x
  2. Step 2: Convert to fraction form
    861,853.50/1,292,780.25 = 270,877.50/x
  3. Step 3: Cross multiply
    861,853.50x = 1,292,780.25 × 270,877.50
  4. Step 4: Simplify right side
    861,853.50x = 350,185,082,169.38
  5. Step 5: Solve for x
    x = 350,185,082,169.38/861,853.50
  6. Step 6: Final answer
    x = 406,316.25

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Similar ratio
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1.5x scale

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.