Home / 726,163.70-1,002,029.12-403,821.68

Finding the Fourth Proportional to 726,163.70, 1,002,029.12 and 403,821.68

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Solution

The fourth proportional to 726,163.70, 1,002,029.12 and 403,821.68 is: 557,231.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,163.70 : 1,002,029.12 = 403,821.68 : x
  2. Step 2: Convert to fraction form
    726,163.70/1,002,029.12 = 403,821.68/x
  3. Step 3: Cross multiply
    726,163.70x = 1,002,029.12 × 403,821.68
  4. Step 4: Simplify right side
    726,163.70x = 404,641,082,647.32
  5. Step 5: Solve for x
    x = 404,641,082,647.32/726,163.70
  6. Step 6: Final answer
    x = 557,231.22

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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.