Home / 1,256,546.13-1,734,128.42-766,471.72

Finding the Fourth Proportional to 1,256,546.13, 1,734,128.42 and 766,471.72

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Solution

The fourth proportional to 1,256,546.13, 1,734,128.42 and 766,471.72 is: 1,057,788.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,546.13 : 1,734,128.42 = 766,471.72 : x
  2. Step 2: Convert to fraction form
    1,256,546.13/1,734,128.42 = 766,471.72/x
  3. Step 3: Cross multiply
    1,256,546.13x = 1,734,128.42 × 766,471.72
  4. Step 4: Simplify right side
    1,256,546.13x = 1,329,160,392,778.28
  5. Step 5: Solve for x
    x = 1,329,160,392,778.28/1,256,546.13
  6. Step 6: Final answer
    x = 1,057,788.78

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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.