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Finding the Fourth Proportional to 668,003.80, 1,002,005.70 and 194,704.60

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Solution

The fourth proportional to 668,003.80, 1,002,005.70 and 194,704.60 is: 292,056.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,003.80 : 1,002,005.70 = 194,704.60 : x
  2. Step 2: Convert to fraction form
    668,003.80/1,002,005.70 = 194,704.60/x
  3. Step 3: Cross multiply
    668,003.80x = 1,002,005.70 × 194,704.60
  4. Step 4: Simplify right side
    668,003.80x = 195,095,119,016.22
  5. Step 5: Solve for x
    x = 195,095,119,016.22/668,003.80
  6. Step 6: Final answer
    x = 292,056.90

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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.