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Finding the Fourth Proportional to 535,279.30, 738,617.10 and 305,851.44

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Solution

The fourth proportional to 535,279.30, 738,617.10 and 305,851.44 is: 422,035.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,279.30 : 738,617.10 = 305,851.44 : x
  2. Step 2: Convert to fraction form
    535,279.30/738,617.10 = 305,851.44/x
  3. Step 3: Cross multiply
    535,279.30x = 738,617.10 × 305,851.44
  4. Step 4: Simplify right side
    535,279.30x = 225,907,103,643.62
  5. Step 5: Solve for x
    x = 225,907,103,643.62/535,279.30
  6. Step 6: Final answer
    x = 422,035.94

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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.