Home / 759,407.45-1,138,942.28-219,545.81

Finding the Fourth Proportional to 759,407.45, 1,138,942.28 and 219,545.81

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Solution

The fourth proportional to 759,407.45, 1,138,942.28 and 219,545.81 is: 329,269.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,407.45 : 1,138,942.28 = 219,545.81 : x
  2. Step 2: Convert to fraction form
    759,407.45/1,138,942.28 = 219,545.81/x
  3. Step 3: Cross multiply
    759,407.45x = 1,138,942.28 × 219,545.81
  4. Step 4: Simplify right side
    759,407.45x = 250,049,998,613.41
  5. Step 5: Solve for x
    x = 250,049,998,613.41/759,407.45
  6. Step 6: Final answer
    x = 329,269.88

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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.