Home / 1,275,540-1,760,091.84-731,647.68

Finding the Fourth Proportional to 1,275,540, 1,760,091.84 and 731,647.68

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Solution

The fourth proportional to 1,275,540, 1,760,091.84 and 731,647.68 is: 1,009,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,540 : 1,760,091.84 = 731,647.68 : x
  2. Step 2: Convert to fraction form
    1,275,540/1,760,091.84 = 731,647.68/x
  3. Step 3: Cross multiply
    1,275,540x = 1,760,091.84 × 731,647.68
  4. Step 4: Simplify right side
    1,275,540x = 1,287,767,111,322.93
  5. Step 5: Solve for x
    x = 1,287,767,111,322.93/1,275,540
  6. Step 6: Final answer
    x = 1,009,585.83

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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.