Home / 1,425,391.25-1,967,040.28-780,834.36

Finding the Fourth Proportional to 1,425,391.25, 1,967,040.28 and 780,834.36

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Solution

The fourth proportional to 1,425,391.25, 1,967,040.28 and 780,834.36 is: 1,077,551.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,391.25 : 1,967,040.28 = 780,834.36 : x
  2. Step 2: Convert to fraction form
    1,425,391.25/1,967,040.28 = 780,834.36/x
  3. Step 3: Cross multiply
    1,425,391.25x = 1,967,040.28 × 780,834.36
  4. Step 4: Simplify right side
    1,425,391.25x = 1,535,932,628,799.53
  5. Step 5: Solve for x
    x = 1,535,932,628,799.53/1,425,391.25
  6. Step 6: Final answer
    x = 1,077,551.61

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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.