Home / 824,101.20-1,236,151.80-487,521.90

Finding the Fourth Proportional to 824,101.20, 1,236,151.80 and 487,521.90

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Solution

The fourth proportional to 824,101.20, 1,236,151.80 and 487,521.90 is: 731,282.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,101.20 : 1,236,151.80 = 487,521.90 : x
  2. Step 2: Convert to fraction form
    824,101.20/1,236,151.80 = 487,521.90/x
  3. Step 3: Cross multiply
    824,101.20x = 1,236,151.80 × 487,521.90
  4. Step 4: Simplify right side
    824,101.20x = 602,651,074,224.42
  5. Step 5: Solve for x
    x = 602,651,074,224.42/824,101.20
  6. Step 6: Final answer
    x = 731,282.85

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.