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Finding the Fourth Proportional to 892,238.40, 1,339,394.40 and 537,652.80

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Solution

The fourth proportional to 892,238.40, 1,339,394.40 and 537,652.80 is: 807,103.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,238.40 : 1,339,394.40 = 537,652.80 : x
  2. Step 2: Convert to fraction form
    892,238.40/1,339,394.40 = 537,652.80/x
  3. Step 3: Cross multiply
    892,238.40x = 1,339,394.40 × 537,652.80
  4. Step 4: Simplify right side
    892,238.40x = 720,129,149,464.32
  5. Step 5: Solve for x
    x = 720,129,149,464.32/892,238.40
  6. Step 6: Final answer
    x = 807,103.96

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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.