Home / 1,449,346.38-2,172,876.12-915,742.68

Finding the Fourth Proportional to 1,449,346.38, 2,172,876.12 and 915,742.68

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Solution

The fourth proportional to 1,449,346.38, 2,172,876.12 and 915,742.68 is: 1,372,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,346.38 : 2,172,876.12 = 915,742.68 : x
  2. Step 2: Convert to fraction form
    1,449,346.38/2,172,876.12 = 915,742.68/x
  3. Step 3: Cross multiply
    1,449,346.38x = 2,172,876.12 × 915,742.68
  4. Step 4: Simplify right side
    1,449,346.38x = 1,989,795,401,436.80
  5. Step 5: Solve for x
    x = 1,989,795,401,436.80/1,449,346.38
  6. Step 6: Final answer
    x = 1,372,891.55

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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.