Home / 689,366.16-1,034,049.78-216,088.38

Finding the Fourth Proportional to 689,366.16, 1,034,049.78 and 216,088.38

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Solution

The fourth proportional to 689,366.16, 1,034,049.78 and 216,088.38 is: 324,132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,366.16 : 1,034,049.78 = 216,088.38 : x
  2. Step 2: Convert to fraction form
    689,366.16/1,034,049.78 = 216,088.38/x
  3. Step 3: Cross multiply
    689,366.16x = 1,034,049.78 × 216,088.38
  4. Step 4: Simplify right side
    689,366.16x = 223,446,141,799.56
  5. Step 5: Solve for x
    x = 223,446,141,799.56/689,366.16
  6. Step 6: Final answer
    x = 324,132.74

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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.