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Finding the Fourth Proportional to 617,268.06, 851,863.01 and 345,319.73

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Solution

The fourth proportional to 617,268.06, 851,863.01 and 345,319.73 is: 476,559.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,268.06 : 851,863.01 = 345,319.73 : x
  2. Step 2: Convert to fraction form
    617,268.06/851,863.01 = 345,319.73/x
  3. Step 3: Cross multiply
    617,268.06x = 851,863.01 × 345,319.73
  4. Step 4: Simplify right side
    617,268.06x = 294,165,103,746.89
  5. Step 5: Solve for x
    x = 294,165,103,746.89/617,268.06
  6. Step 6: Final answer
    x = 476,559.74

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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.