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Finding the Fourth Proportional to 617,112.60, 851,694.26 and 345,195.60

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Solution

The fourth proportional to 617,112.60, 851,694.26 and 345,195.60 is: 476,414.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,112.60 : 851,694.26 = 345,195.60 : x
  2. Step 2: Convert to fraction form
    617,112.60/851,694.26 = 345,195.60/x
  3. Step 3: Cross multiply
    617,112.60x = 851,694.26 × 345,195.60
  4. Step 4: Simplify right side
    617,112.60x = 294,001,111,097.26
  5. Step 5: Solve for x
    x = 294,001,111,097.26/617,112.60
  6. Step 6: Final answer
    x = 476,414.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.