Home / 598,632.20-897,948.30-431,326.70

Finding the Fourth Proportional to 598,632.20, 897,948.30 and 431,326.70

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Solution

The fourth proportional to 598,632.20, 897,948.30 and 431,326.70 is: 646,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,632.20 : 897,948.30 = 431,326.70 : x
  2. Step 2: Convert to fraction form
    598,632.20/897,948.30 = 431,326.70/x
  3. Step 3: Cross multiply
    598,632.20x = 897,948.30 × 431,326.70
  4. Step 4: Simplify right side
    598,632.20x = 387,309,077,009.61
  5. Step 5: Solve for x
    x = 387,309,077,009.61/598,632.20
  6. Step 6: Final answer
    x = 646,990.05

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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.