Home / 486,974.38-672,011.76-272,116.22

Finding the Fourth Proportional to 486,974.38, 672,011.76 and 272,116.22

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Solution

The fourth proportional to 486,974.38, 672,011.76 and 272,116.22 is: 375,513.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,974.38 : 672,011.76 = 272,116.22 : x
  2. Step 2: Convert to fraction form
    486,974.38/672,011.76 = 272,116.22/x
  3. Step 3: Cross multiply
    486,974.38x = 672,011.76 × 272,116.22
  4. Step 4: Simplify right side
    486,974.38x = 182,865,299,926.75
  5. Step 5: Solve for x
    x = 182,865,299,926.75/486,974.38
  6. Step 6: Final answer
    x = 375,513.18

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Find fourth proportional to 973,948.76, 1,344,023.52 and 544,232.44
Double scale
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Similar ratio
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1.5x scale

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.