Home / 787,427.44-1,086,685.20-443,381.68

Finding the Fourth Proportional to 787,427.44, 1,086,685.20 and 443,381.68

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Solution

The fourth proportional to 787,427.44, 1,086,685.20 and 443,381.68 is: 611,886.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,427.44 : 1,086,685.20 = 443,381.68 : x
  2. Step 2: Convert to fraction form
    787,427.44/1,086,685.20 = 443,381.68/x
  3. Step 3: Cross multiply
    787,427.44x = 1,086,685.20 × 443,381.68
  4. Step 4: Simplify right side
    787,427.44x = 481,816,309,607.14
  5. Step 5: Solve for x
    x = 481,816,309,607.14/787,427.44
  6. Step 6: Final answer
    x = 611,886.61

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Double scale
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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.