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Finding the Fourth Proportional to 643,605.60, 965,034.53 and 244,028.42

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Solution

The fourth proportional to 643,605.60, 965,034.53 and 244,028.42 is: 365,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,605.60 : 965,034.53 = 244,028.42 : x
  2. Step 2: Convert to fraction form
    643,605.60/965,034.53 = 244,028.42/x
  3. Step 3: Cross multiply
    643,605.60x = 965,034.53 × 244,028.42
  4. Step 4: Simplify right side
    643,605.60x = 235,495,845,556.03
  5. Step 5: Solve for x
    x = 235,495,845,556.03/643,605.60
  6. Step 6: Final answer
    x = 365,900.86

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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.