Home / 725,806.92-1,088,752.76-220,384.40

Finding the Fourth Proportional to 725,806.92, 1,088,752.76 and 220,384.40

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Solution

The fourth proportional to 725,806.92, 1,088,752.76 and 220,384.40 is: 330,589.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,806.92 : 1,088,752.76 = 220,384.40 : x
  2. Step 2: Convert to fraction form
    725,806.92/1,088,752.76 = 220,384.40/x
  3. Step 3: Cross multiply
    725,806.92x = 1,088,752.76 × 220,384.40
  4. Step 4: Simplify right side
    725,806.92x = 239,944,117,215.26
  5. Step 5: Solve for x
    x = 239,944,117,215.26/725,806.92
  6. Step 6: Final answer
    x = 330,589.46

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Double scale
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Similar ratio
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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.