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Finding the Fourth Proportional to 626,523.12, 864,610.20 and 340,046.64

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Solution

The fourth proportional to 626,523.12, 864,610.20 and 340,046.64 is: 469,268.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,523.12 : 864,610.20 = 340,046.64 : x
  2. Step 2: Convert to fraction form
    626,523.12/864,610.20 = 340,046.64/x
  3. Step 3: Cross multiply
    626,523.12x = 864,610.20 × 340,046.64
  4. Step 4: Simplify right side
    626,523.12x = 294,007,793,419.73
  5. Step 5: Solve for x
    x = 294,007,793,419.73/626,523.12
  6. Step 6: Final answer
    x = 469,268.87

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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.