Home / 738,288-1,107,616.96-212,976

Finding the Fourth Proportional to 738,288, 1,107,616.96 and 212,976

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Solution

The fourth proportional to 738,288, 1,107,616.96 and 212,976 is: 319,517.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,288 : 1,107,616.96 = 212,976 : x
  2. Step 2: Convert to fraction form
    738,288/1,107,616.96 = 212,976/x
  3. Step 3: Cross multiply
    738,288x = 1,107,616.96 × 212,976
  4. Step 4: Simplify right side
    738,288x = 235,895,829,672.96
  5. Step 5: Solve for x
    x = 235,895,829,672.96/738,288
  6. Step 6: Final answer
    x = 319,517.36

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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.