Home / 2,129,361.20-3,192,875.40-865,761.20

Finding the Fourth Proportional to 2,129,361.20, 3,192,875.40 and 865,761.20

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Solution

The fourth proportional to 2,129,361.20, 3,192,875.40 and 865,761.20 is: 1,298,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,361.20 : 3,192,875.40 = 865,761.20 : x
  2. Step 2: Convert to fraction form
    2,129,361.20/3,192,875.40 = 865,761.20/x
  3. Step 3: Cross multiply
    2,129,361.20x = 3,192,875.40 × 865,761.20
  4. Step 4: Simplify right side
    2,129,361.20x = 2,764,267,637,754.48
  5. Step 5: Solve for x
    x = 2,764,267,637,754.48/2,129,361.20
  6. Step 6: Final answer
    x = 1,298,167.56

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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.