Home / 716,049.46-988,080.65-425,637.73

Finding the Fourth Proportional to 716,049.46, 988,080.65 and 425,637.73

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Solution

The fourth proportional to 716,049.46, 988,080.65 and 425,637.73 is: 587,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,049.46 : 988,080.65 = 425,637.73 : x
  2. Step 2: Convert to fraction form
    716,049.46/988,080.65 = 425,637.73/x
  3. Step 3: Cross multiply
    716,049.46x = 988,080.65 × 425,637.73
  4. Step 4: Simplify right side
    716,049.46x = 420,564,400,324.53
  5. Step 5: Solve for x
    x = 420,564,400,324.53/716,049.46
  6. Step 6: Final answer
    x = 587,339.88

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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.