Home / 3,202,418.53-4,418,901.11-1,912,985.20

Finding the Fourth Proportional to 3,202,418.53, 4,418,901.11 and 1,912,985.20

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Solution

The fourth proportional to 3,202,418.53, 4,418,901.11 and 1,912,985.20 is: 2,639,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,202,418.53 : 4,418,901.11 = 1,912,985.20 : x
  2. Step 2: Convert to fraction form
    3,202,418.53/4,418,901.11 = 1,912,985.20/x
  3. Step 3: Cross multiply
    3,202,418.53x = 4,418,901.11 × 1,912,985.20
  4. Step 4: Simplify right side
    3,202,418.53x = 8,453,292,392,034.14
  5. Step 5: Solve for x
    x = 8,453,292,392,034.14/3,202,418.53
  6. Step 6: Final answer
    x = 2,639,658.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.