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Finding the Fourth Proportional to 441,102.80, 661,654.20 and 402,611.60

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Solution

The fourth proportional to 441,102.80, 661,654.20 and 402,611.60 is: 603,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,102.80 : 661,654.20 = 402,611.60 : x
  2. Step 2: Convert to fraction form
    441,102.80/661,654.20 = 402,611.60/x
  3. Step 3: Cross multiply
    441,102.80x = 661,654.20 × 402,611.60
  4. Step 4: Simplify right side
    441,102.80x = 266,389,656,108.72
  5. Step 5: Solve for x
    x = 266,389,656,108.72/441,102.80
  6. Step 6: Final answer
    x = 603,917.40

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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.