Home / 1,338,309.21-1,846,816.62-726,448.80

Finding the Fourth Proportional to 1,338,309.21, 1,846,816.62 and 726,448.80

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Solution

The fourth proportional to 1,338,309.21, 1,846,816.62 and 726,448.80 is: 1,002,472.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,309.21 : 1,846,816.62 = 726,448.80 : x
  2. Step 2: Convert to fraction form
    1,338,309.21/1,846,816.62 = 726,448.80/x
  3. Step 3: Cross multiply
    1,338,309.21x = 1,846,816.62 × 726,448.80
  4. Step 4: Simplify right side
    1,338,309.21x = 1,341,617,717,419.06
  5. Step 5: Solve for x
    x = 1,341,617,717,419.06/1,338,309.21
  6. Step 6: Final answer
    x = 1,002,472.15

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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.