Home / 2,115,932.31-3,172,898.07-819,691.84

Finding the Fourth Proportional to 2,115,932.31, 3,172,898.07 and 819,691.84

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Solution

The fourth proportional to 2,115,932.31, 3,172,898.07 and 819,691.84 is: 1,229,150.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,932.31 : 3,172,898.07 = 819,691.84 : x
  2. Step 2: Convert to fraction form
    2,115,932.31/3,172,898.07 = 819,691.84/x
  3. Step 3: Cross multiply
    2,115,932.31x = 3,172,898.07 × 819,691.84
  4. Step 4: Simplify right side
    2,115,932.31x = 2,600,798,657,130.75
  5. Step 5: Solve for x
    x = 2,600,798,657,130.75/2,115,932.31
  6. Step 6: Final answer
    x = 1,229,150.22

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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.