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Finding the Fourth Proportional to 662,920.64, 994,816.78 and 363,611

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Solution

The fourth proportional to 662,920.64, 994,816.78 and 363,611 is: 545,655.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,920.64 : 994,816.78 = 363,611 : x
  2. Step 2: Convert to fraction form
    662,920.64/994,816.78 = 363,611/x
  3. Step 3: Cross multiply
    662,920.64x = 994,816.78 × 363,611
  4. Step 4: Simplify right side
    662,920.64x = 361,726,324,192.58
  5. Step 5: Solve for x
    x = 361,726,324,192.58/662,920.64
  6. Step 6: Final answer
    x = 545,655.55

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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.