Home / 749,680.92-1,034,556.57-405,517.05

Finding the Fourth Proportional to 749,680.92, 1,034,556.57 and 405,517.05

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Solution

The fourth proportional to 749,680.92, 1,034,556.57 and 405,517.05 is: 559,611.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,680.92 : 1,034,556.57 = 405,517.05 : x
  2. Step 2: Convert to fraction form
    749,680.92/1,034,556.57 = 405,517.05/x
  3. Step 3: Cross multiply
    749,680.92x = 1,034,556.57 × 405,517.05
  4. Step 4: Simplify right side
    749,680.92x = 419,530,328,324.52
  5. Step 5: Solve for x
    x = 419,530,328,324.52/749,680.92
  6. Step 6: Final answer
    x = 559,611.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.