Home / 725,615.20-1,088,422.80-220,175.20

Finding the Fourth Proportional to 725,615.20, 1,088,422.80 and 220,175.20

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Solution

The fourth proportional to 725,615.20, 1,088,422.80 and 220,175.20 is: 330,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,615.20 : 1,088,422.80 = 220,175.20 : x
  2. Step 2: Convert to fraction form
    725,615.20/1,088,422.80 = 220,175.20/x
  3. Step 3: Cross multiply
    725,615.20x = 1,088,422.80 × 220,175.20
  4. Step 4: Simplify right side
    725,615.20x = 239,643,707,674.56
  5. Step 5: Solve for x
    x = 239,643,707,674.56/725,615.20
  6. Step 6: Final answer
    x = 330,262.80

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1.5x scale

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.