Home / 720,456.75-1,080,525.89-208,010.57

Finding the Fourth Proportional to 720,456.75, 1,080,525.89 and 208,010.57

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Solution

The fourth proportional to 720,456.75, 1,080,525.89 and 208,010.57 is: 311,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,456.75 : 1,080,525.89 = 208,010.57 : x
  2. Step 2: Convert to fraction form
    720,456.75/1,080,525.89 = 208,010.57/x
  3. Step 3: Cross multiply
    720,456.75x = 1,080,525.89 × 208,010.57
  4. Step 4: Simplify right side
    720,456.75x = 224,760,806,278.66
  5. Step 5: Solve for x
    x = 224,760,806,278.66/720,456.75
  6. Step 6: Final answer
    x = 311,969.88

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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.