Home / 726,965.73-1,003,189.19-404,665.11

Finding the Fourth Proportional to 726,965.73, 1,003,189.19 and 404,665.11

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Solution

The fourth proportional to 726,965.73, 1,003,189.19 and 404,665.11 is: 558,424.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,965.73 : 1,003,189.19 = 404,665.11 : x
  2. Step 2: Convert to fraction form
    726,965.73/1,003,189.19 = 404,665.11/x
  3. Step 3: Cross multiply
    726,965.73x = 1,003,189.19 × 404,665.11
  4. Step 4: Simplify right side
    726,965.73x = 405,955,661,898.84
  5. Step 5: Solve for x
    x = 405,955,661,898.84/726,965.73
  6. Step 6: Final answer
    x = 558,424.76

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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.