Home / 811,576.32-1,217,365.76-220,600.32

Finding the Fourth Proportional to 811,576.32, 1,217,365.76 and 220,600.32

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Solution

The fourth proportional to 811,576.32, 1,217,365.76 and 220,600.32 is: 330,900.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,576.32 : 1,217,365.76 = 220,600.32 : x
  2. Step 2: Convert to fraction form
    811,576.32/1,217,365.76 = 220,600.32/x
  3. Step 3: Cross multiply
    811,576.32x = 1,217,365.76 × 220,600.32
  4. Step 4: Simplify right side
    811,576.32x = 268,551,276,213.04
  5. Step 5: Solve for x
    x = 268,551,276,213.04/811,576.32
  6. Step 6: Final answer
    x = 330,900.83

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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.