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Finding the Fourth Proportional to 892,990.60, 1,337,153.10 and 851,000.20

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Solution

The fourth proportional to 892,990.60, 1,337,153.10 and 851,000.20 is: 1,274,277.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,990.60 : 1,337,153.10 = 851,000.20 : x
  2. Step 2: Convert to fraction form
    892,990.60/1,337,153.10 = 851,000.20/x
  3. Step 3: Cross multiply
    892,990.60x = 1,337,153.10 × 851,000.20
  4. Step 4: Simplify right side
    892,990.60x = 1,137,917,555,530.62
  5. Step 5: Solve for x
    x = 1,137,917,555,530.62/892,990.60
  6. Step 6: Final answer
    x = 1,274,277.19

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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.