Home / 663,008.20-994,220.70-263,516.20

Finding the Fourth Proportional to 663,008.20, 994,220.70 and 263,516.20

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Solution

The fourth proportional to 663,008.20, 994,220.70 and 263,516.20 is: 395,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,008.20 : 994,220.70 = 263,516.20 : x
  2. Step 2: Convert to fraction form
    663,008.20/994,220.70 = 263,516.20/x
  3. Step 3: Cross multiply
    663,008.20x = 994,220.70 × 263,516.20
  4. Step 4: Simplify right side
    663,008.20x = 261,993,260,825.34
  5. Step 5: Solve for x
    x = 261,993,260,825.34/663,008.20
  6. Step 6: Final answer
    x = 395,158.40

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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.