Home / 676,732.43-1,015,099.40-203,417.78

Finding the Fourth Proportional to 676,732.43, 1,015,099.40 and 203,417.78

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Solution

The fourth proportional to 676,732.43, 1,015,099.40 and 203,417.78 is: 305,126.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,732.43 : 1,015,099.40 = 203,417.78 : x
  2. Step 2: Convert to fraction form
    676,732.43/1,015,099.40 = 203,417.78/x
  3. Step 3: Cross multiply
    676,732.43x = 1,015,099.40 × 203,417.78
  4. Step 4: Simplify right side
    676,732.43x = 206,489,260,334.75
  5. Step 5: Solve for x
    x = 206,489,260,334.75/676,732.43
  6. Step 6: Final answer
    x = 305,126.89

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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.