Home / 2,143,239.35-3,215,419.28-1,243,816.46

Finding the Fourth Proportional to 2,143,239.35, 3,215,419.28 and 1,243,816.46

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Solution

The fourth proportional to 2,143,239.35, 3,215,419.28 and 1,243,816.46 is: 1,866,049.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,239.35 : 3,215,419.28 = 1,243,816.46 : x
  2. Step 2: Convert to fraction form
    2,143,239.35/3,215,419.28 = 1,243,816.46/x
  3. Step 3: Cross multiply
    2,143,239.35x = 3,215,419.28 × 1,243,816.46
  4. Step 4: Simplify right side
    2,143,239.35x = 3,999,391,427,687.77
  5. Step 5: Solve for x
    x = 3,999,391,427,687.77/2,143,239.35
  6. Step 6: Final answer
    x = 1,866,049.84

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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.