Home / 748,902.90-1,123,359.15-299,661.30

Finding the Fourth Proportional to 748,902.90, 1,123,359.15 and 299,661.30

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Solution

The fourth proportional to 748,902.90, 1,123,359.15 and 299,661.30 is: 449,493.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,902.90 : 1,123,359.15 = 299,661.30 : x
  2. Step 2: Convert to fraction form
    748,902.90/1,123,359.15 = 299,661.30/x
  3. Step 3: Cross multiply
    748,902.90x = 1,123,359.15 × 299,661.30
  4. Step 4: Simplify right side
    748,902.90x = 336,627,263,255.90
  5. Step 5: Solve for x
    x = 336,627,263,255.90/748,902.90
  6. Step 6: Final answer
    x = 449,493.87

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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.