Home / 725,690.19-1,088,538.77-220,255.56

Finding the Fourth Proportional to 725,690.19, 1,088,538.77 and 220,255.56

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Solution

The fourth proportional to 725,690.19, 1,088,538.77 and 220,255.56 is: 330,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,690.19 : 1,088,538.77 = 220,255.56 : x
  2. Step 2: Convert to fraction form
    725,690.19/1,088,538.77 = 220,255.56/x
  3. Step 3: Cross multiply
    725,690.19x = 1,088,538.77 × 220,255.56
  4. Step 4: Simplify right side
    725,690.19x = 239,756,715,679.76
  5. Step 5: Solve for x
    x = 239,756,715,679.76/725,690.19
  6. Step 6: Final answer
    x = 330,384.40

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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.