Home / 1,380,178.92-2,068,589.76-738,906.78

Finding the Fourth Proportional to 1,380,178.92, 2,068,589.76 and 738,906.78

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Solution

The fourth proportional to 1,380,178.92, 2,068,589.76 and 738,906.78 is: 1,107,461.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,178.92 : 2,068,589.76 = 738,906.78 : x
  2. Step 2: Convert to fraction form
    1,380,178.92/2,068,589.76 = 738,906.78/x
  3. Step 3: Cross multiply
    1,380,178.92x = 2,068,589.76 × 738,906.78
  4. Step 4: Simplify right side
    1,380,178.92x = 1,528,495,007,845.23
  5. Step 5: Solve for x
    x = 1,528,495,007,845.23/1,380,178.92
  6. Step 6: Final answer
    x = 1,107,461.49

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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.