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Finding the Fourth Proportional to 663,173.70, 994,759.30 and 207,799.79

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Solution

The fourth proportional to 663,173.70, 994,759.30 and 207,799.79 is: 311,699.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,173.70 : 994,759.30 = 207,799.79 : x
  2. Step 2: Convert to fraction form
    663,173.70/994,759.30 = 207,799.79/x
  3. Step 3: Cross multiply
    663,173.70x = 994,759.30 × 207,799.79
  4. Step 4: Simplify right side
    663,173.70x = 206,710,772,601.55
  5. Step 5: Solve for x
    x = 206,710,772,601.55/663,173.70
  6. Step 6: Final answer
    x = 311,699.29

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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.