Home / 745,791.21-1,029,115.17-419,052.33

Finding the Fourth Proportional to 745,791.21, 1,029,115.17 and 419,052.33

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Solution

The fourth proportional to 745,791.21, 1,029,115.17 and 419,052.33 is: 578,249.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,791.21 : 1,029,115.17 = 419,052.33 : x
  2. Step 2: Convert to fraction form
    745,791.21/1,029,115.17 = 419,052.33/x
  3. Step 3: Cross multiply
    745,791.21x = 1,029,115.17 × 419,052.33
  4. Step 4: Simplify right side
    745,791.21x = 431,253,109,826.85
  5. Step 5: Solve for x
    x = 431,253,109,826.85/745,791.21
  6. Step 6: Final answer
    x = 578,249.12

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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.