Home / 724,309.78-1,086,464.85-275,031.04

Finding the Fourth Proportional to 724,309.78, 1,086,464.85 and 275,031.04

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Solution

The fourth proportional to 724,309.78, 1,086,464.85 and 275,031.04 is: 412,546.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,309.78 : 1,086,464.85 = 275,031.04 : x
  2. Step 2: Convert to fraction form
    724,309.78/1,086,464.85 = 275,031.04/x
  3. Step 3: Cross multiply
    724,309.78x = 1,086,464.85 × 275,031.04
  4. Step 4: Simplify right side
    724,309.78x = 298,811,557,618.94
  5. Step 5: Solve for x
    x = 298,811,557,618.94/724,309.78
  6. Step 6: Final answer
    x = 412,546.63

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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.