Home / 2,146,874.28-3,220,432.04-688,047.66

Finding the Fourth Proportional to 2,146,874.28, 3,220,432.04 and 688,047.66

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Solution

The fourth proportional to 2,146,874.28, 3,220,432.04 and 688,047.66 is: 1,032,110.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146,874.28 : 3,220,432.04 = 688,047.66 : x
  2. Step 2: Convert to fraction form
    2,146,874.28/3,220,432.04 = 688,047.66/x
  3. Step 3: Cross multiply
    2,146,874.28x = 3,220,432.04 × 688,047.66
  4. Step 4: Simplify right side
    2,146,874.28x = 2,215,810,729,311.03
  5. Step 5: Solve for x
    x = 2,215,810,729,311.03/2,146,874.28
  6. Step 6: Final answer
    x = 1,032,110.15

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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.