Home / 1,057,212.80-1,585,993.44-426,073.28

Finding the Fourth Proportional to 1,057,212.80, 1,585,993.44 and 426,073.28

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Solution

The fourth proportional to 1,057,212.80, 1,585,993.44 and 426,073.28 is: 639,180.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,212.80 : 1,585,993.44 = 426,073.28 : x
  2. Step 2: Convert to fraction form
    1,057,212.80/1,585,993.44 = 426,073.28/x
  3. Step 3: Cross multiply
    1,057,212.80x = 1,585,993.44 × 426,073.28
  4. Step 4: Simplify right side
    1,057,212.80x = 675,749,427,039.28
  5. Step 5: Solve for x
    x = 675,749,427,039.28/1,057,212.80
  6. Step 6: Final answer
    x = 639,180.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.