Home / 726,890.11-1,003,108.38-404,593.31

Finding the Fourth Proportional to 726,890.11, 1,003,108.38 and 404,593.31

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Solution

The fourth proportional to 726,890.11, 1,003,108.38 and 404,593.31 is: 558,338.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,890.11 : 1,003,108.38 = 404,593.31 : x
  2. Step 2: Convert to fraction form
    726,890.11/1,003,108.38 = 404,593.31/x
  3. Step 3: Cross multiply
    726,890.11x = 1,003,108.38 × 404,593.31
  4. Step 4: Simplify right side
    726,890.11x = 405,850,939,752.94
  5. Step 5: Solve for x
    x = 405,850,939,752.94/726,890.11
  6. Step 6: Final answer
    x = 558,338.78

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Double scale
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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.