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Finding the Fourth Proportional to 880,640.64, 1,320,544.60 and 341,149.60

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Solution

The fourth proportional to 880,640.64, 1,320,544.60 and 341,149.60 is: 511,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,640.64 : 1,320,544.60 = 341,149.60 : x
  2. Step 2: Convert to fraction form
    880,640.64/1,320,544.60 = 341,149.60/x
  3. Step 3: Cross multiply
    880,640.64x = 1,320,544.60 × 341,149.60
  4. Step 4: Simplify right side
    880,640.64x = 450,503,262,072.16
  5. Step 5: Solve for x
    x = 450,503,262,072.16/880,640.64
  6. Step 6: Final answer
    x = 511,563.11

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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.