Home / 689,743.68-1,034,659.24-216,447.72

Finding the Fourth Proportional to 689,743.68, 1,034,659.24 and 216,447.72

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Solution

The fourth proportional to 689,743.68, 1,034,659.24 and 216,447.72 is: 324,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,743.68 : 1,034,659.24 = 216,447.72 : x
  2. Step 2: Convert to fraction form
    689,743.68/1,034,659.24 = 216,447.72/x
  3. Step 3: Cross multiply
    689,743.68x = 1,034,659.24 × 216,447.72
  4. Step 4: Simplify right side
    689,743.68x = 223,949,633,474.93
  5. Step 5: Solve for x
    x = 223,949,633,474.93/689,743.68
  6. Step 6: Final answer
    x = 324,685.30

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1.5x scale

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.