Home / 725,715.70-1,088,573.55-220,275.70

Finding the Fourth Proportional to 725,715.70, 1,088,573.55 and 220,275.70

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Solution

The fourth proportional to 725,715.70, 1,088,573.55 and 220,275.70 is: 330,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,715.70 : 1,088,573.55 = 220,275.70 : x
  2. Step 2: Convert to fraction form
    725,715.70/1,088,573.55 = 220,275.70/x
  3. Step 3: Cross multiply
    725,715.70x = 1,088,573.55 × 220,275.70
  4. Step 4: Simplify right side
    725,715.70x = 239,786,300,727.74
  5. Step 5: Solve for x
    x = 239,786,300,727.74/725,715.70
  6. Step 6: Final answer
    x = 330,413.55

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Half scale
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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.