Home / 1,408,787.80-2,109,449.22-742,540.12

Finding the Fourth Proportional to 1,408,787.80, 2,109,449.22 and 742,540.12

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Solution

The fourth proportional to 1,408,787.80, 2,109,449.22 and 742,540.12 is: 1,111,842.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,787.80 : 2,109,449.22 = 742,540.12 : x
  2. Step 2: Convert to fraction form
    1,408,787.80/2,109,449.22 = 742,540.12/x
  3. Step 3: Cross multiply
    1,408,787.80x = 2,109,449.22 × 742,540.12
  4. Step 4: Simplify right side
    1,408,787.80x = 1,566,350,676,952.71
  5. Step 5: Solve for x
    x = 1,566,350,676,952.71/1,408,787.80
  6. Step 6: Final answer
    x = 1,111,842.87

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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.