Home / 1,311,149.76-1,809,498.06-738,301.56

Finding the Fourth Proportional to 1,311,149.76, 1,809,498.06 and 738,301.56

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Solution

The fourth proportional to 1,311,149.76, 1,809,498.06 and 738,301.56 is: 1,018,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,149.76 : 1,809,498.06 = 738,301.56 : x
  2. Step 2: Convert to fraction form
    1,311,149.76/1,809,498.06 = 738,301.56/x
  3. Step 3: Cross multiply
    1,311,149.76x = 1,809,498.06 × 738,301.56
  4. Step 4: Simplify right side
    1,311,149.76x = 1,335,955,240,514.97
  5. Step 5: Solve for x
    x = 1,335,955,240,514.97/1,311,149.76
  6. Step 6: Final answer
    x = 1,018,918.88

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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.