Home / 2,107,787.20-3,162,011.30-687,515.36

Finding the Fourth Proportional to 2,107,787.20, 3,162,011.30 and 687,515.36

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Solution

The fourth proportional to 2,107,787.20, 3,162,011.30 and 687,515.36 is: 1,031,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107,787.20 : 3,162,011.30 = 687,515.36 : x
  2. Step 2: Convert to fraction form
    2,107,787.20/3,162,011.30 = 687,515.36/x
  3. Step 3: Cross multiply
    2,107,787.20x = 3,162,011.30 × 687,515.36
  4. Step 4: Simplify right side
    2,107,787.20x = 2,173,931,337,243.57
  5. Step 5: Solve for x
    x = 2,173,931,337,243.57/2,107,787.20
  6. Step 6: Final answer
    x = 1,031,380.84

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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.