Home / 2,818,695.40-4,228,022.76-688,759.90

Finding the Fourth Proportional to 2,818,695.40, 4,228,022.76 and 688,759.90

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Solution

The fourth proportional to 2,818,695.40, 4,228,022.76 and 688,759.90 is: 1,033,134.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818,695.40 : 4,228,022.76 = 688,759.90 : x
  2. Step 2: Convert to fraction form
    2,818,695.40/4,228,022.76 = 688,759.90/x
  3. Step 3: Cross multiply
    2,818,695.40x = 4,228,022.76 × 688,759.90
  4. Step 4: Simplify right side
    2,818,695.40x = 2,912,092,533,375.32
  5. Step 5: Solve for x
    x = 2,912,092,533,375.32/2,818,695.40
  6. Step 6: Final answer
    x = 1,033,134.88

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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.