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Finding the Fourth Proportional to 560,016.80, 839,487.60 and 185,847.20

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Solution

The fourth proportional to 560,016.80, 839,487.60 and 185,847.20 is: 278,592.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,016.80 : 839,487.60 = 185,847.20 : x
  2. Step 2: Convert to fraction form
    560,016.80/839,487.60 = 185,847.20/x
  3. Step 3: Cross multiply
    560,016.80x = 839,487.60 × 185,847.20
  4. Step 4: Simplify right side
    560,016.80x = 156,016,419,894.72
  5. Step 5: Solve for x
    x = 156,016,419,894.72/560,016.80
  6. Step 6: Final answer
    x = 278,592.39

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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.