Home / 811,036.70-1,216,555.05-220,060.70

Finding the Fourth Proportional to 811,036.70, 1,216,555.05 and 220,060.70

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Solution

The fourth proportional to 811,036.70, 1,216,555.05 and 220,060.70 is: 330,091.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,036.70 : 1,216,555.05 = 220,060.70 : x
  2. Step 2: Convert to fraction form
    811,036.70/1,216,555.05 = 220,060.70/x
  3. Step 3: Cross multiply
    811,036.70x = 1,216,555.05 × 220,060.70
  4. Step 4: Simplify right side
    811,036.70x = 267,715,955,891.54
  5. Step 5: Solve for x
    x = 267,715,955,891.54/811,036.70
  6. Step 6: Final answer
    x = 330,091.05

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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.