Home / 646,938.60-970,148.70-225,997.80

Finding the Fourth Proportional to 646,938.60, 970,148.70 and 225,997.80

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Solution

The fourth proportional to 646,938.60, 970,148.70 and 225,997.80 is: 338,906.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,938.60 : 970,148.70 = 225,997.80 : x
  2. Step 2: Convert to fraction form
    646,938.60/970,148.70 = 225,997.80/x
  3. Step 3: Cross multiply
    646,938.60x = 970,148.70 × 225,997.80
  4. Step 4: Simplify right side
    646,938.60x = 219,251,471,872.86
  5. Step 5: Solve for x
    x = 219,251,471,872.86/646,938.60
  6. Step 6: Final answer
    x = 338,906.15

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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.