Home / 459,067.20-688,601.28-143,525.76

Finding the Fourth Proportional to 459,067.20, 688,601.28 and 143,525.76

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Solution

The fourth proportional to 459,067.20, 688,601.28 and 143,525.76 is: 215,288.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,067.20 : 688,601.28 = 143,525.76 : x
  2. Step 2: Convert to fraction form
    459,067.20/688,601.28 = 143,525.76/x
  3. Step 3: Cross multiply
    459,067.20x = 688,601.28 × 143,525.76
  4. Step 4: Simplify right side
    459,067.20x = 98,832,022,048.97
  5. Step 5: Solve for x
    x = 98,832,022,048.97/459,067.20
  6. Step 6: Final answer
    x = 215,288.79

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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.