Home / 689,414.92-1,034,288.48-216,100.28

Finding the Fourth Proportional to 689,414.92, 1,034,288.48 and 216,100.28

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Solution

The fourth proportional to 689,414.92, 1,034,288.48 and 216,100.28 is: 324,202.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,414.92 : 1,034,288.48 = 216,100.28 : x
  2. Step 2: Convert to fraction form
    689,414.92/1,034,288.48 = 216,100.28/x
  3. Step 3: Cross multiply
    689,414.92x = 1,034,288.48 × 216,100.28
  4. Step 4: Simplify right side
    689,414.92x = 223,510,033,254.75
  5. Step 5: Solve for x
    x = 223,510,033,254.75/689,414.92
  6. Step 6: Final answer
    x = 324,202.49

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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.