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Finding the Fourth Proportional to 836,696.96, 1,255,034.56 and 205,616.32

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Solution

The fourth proportional to 836,696.96, 1,255,034.56 and 205,616.32 is: 308,421.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,696.96 : 1,255,034.56 = 205,616.32 : x
  2. Step 2: Convert to fraction form
    836,696.96/1,255,034.56 = 205,616.32/x
  3. Step 3: Cross multiply
    836,696.96x = 1,255,034.56 × 205,616.32
  4. Step 4: Simplify right side
    836,696.96x = 258,055,587,700.02
  5. Step 5: Solve for x
    x = 258,055,587,700.02/836,696.96
  6. Step 6: Final answer
    x = 308,421.81

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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.