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Finding the Fourth Proportional to 892,348.62, 1,338,425.01 and 261,268.62

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Solution

The fourth proportional to 892,348.62, 1,338,425.01 and 261,268.62 is: 391,874.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,348.62 : 1,338,425.01 = 261,268.62 : x
  2. Step 2: Convert to fraction form
    892,348.62/1,338,425.01 = 261,268.62/x
  3. Step 3: Cross multiply
    892,348.62x = 1,338,425.01 × 261,268.62
  4. Step 4: Simplify right side
    892,348.62x = 349,688,455,336.19
  5. Step 5: Solve for x
    x = 349,688,455,336.19/892,348.62
  6. Step 6: Final answer
    x = 391,874.26

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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.