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Finding the Fourth Proportional to 662,948.70, 994,423.05 and 219,716.70

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Solution

The fourth proportional to 662,948.70, 994,423.05 and 219,716.70 is: 329,575.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,948.70 : 994,423.05 = 219,716.70 : x
  2. Step 2: Convert to fraction form
    662,948.70/994,423.05 = 219,716.70/x
  3. Step 3: Cross multiply
    662,948.70x = 994,423.05 × 219,716.70
  4. Step 4: Simplify right side
    662,948.70x = 218,491,350,949.94
  5. Step 5: Solve for x
    x = 218,491,350,949.94/662,948.70
  6. Step 6: Final answer
    x = 329,575.05

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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.