Home / 801,120.92-1,105,549.91-438,578.51

Finding the Fourth Proportional to 801,120.92, 1,105,549.91 and 438,578.51

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Solution

The fourth proportional to 801,120.92, 1,105,549.91 and 438,578.51 is: 605,240.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,120.92 : 1,105,549.91 = 438,578.51 : x
  2. Step 2: Convert to fraction form
    801,120.92/1,105,549.91 = 438,578.51/x
  3. Step 3: Cross multiply
    801,120.92x = 1,105,549.91 × 438,578.51
  4. Step 4: Simplify right side
    801,120.92x = 484,870,424,537.79
  5. Step 5: Solve for x
    x = 484,870,424,537.79/801,120.92
  6. Step 6: Final answer
    x = 605,240.00

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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.