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Finding the Fourth Proportional to 892,168.92, 1,338,515.46 and 359,415.96

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Solution

The fourth proportional to 892,168.92, 1,338,515.46 and 359,415.96 is: 539,229.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,168.92 : 1,338,515.46 = 359,415.96 : x
  2. Step 2: Convert to fraction form
    892,168.92/1,338,515.46 = 359,415.96/x
  3. Step 3: Cross multiply
    892,168.92x = 1,338,515.46 × 359,415.96
  4. Step 4: Simplify right side
    892,168.92x = 481,083,819,030.74
  5. Step 5: Solve for x
    x = 481,083,819,030.74/892,168.92
  6. Step 6: Final answer
    x = 539,229.52

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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.