Home / 453,728.20-680,540.37-121,330.12

Finding the Fourth Proportional to 453,728.20, 680,540.37 and 121,330.12

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Solution

The fourth proportional to 453,728.20, 680,540.37 and 121,330.12 is: 181,981.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,728.20 : 680,540.37 = 121,330.12 : x
  2. Step 2: Convert to fraction form
    453,728.20/680,540.37 = 121,330.12/x
  3. Step 3: Cross multiply
    453,728.20x = 680,540.37 × 121,330.12
  4. Step 4: Simplify right side
    453,728.20x = 82,570,044,756.94
  5. Step 5: Solve for x
    x = 82,570,044,756.94/453,728.20
  6. Step 6: Final answer
    x = 181,981.29

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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.