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Finding the Fourth Proportional to 504,288, 755,921.52 and 326,907.60

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Solution

The fourth proportional to 504,288, 755,921.52 and 326,907.60 is: 490,030.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,288 : 755,921.52 = 326,907.60 : x
  2. Step 2: Convert to fraction form
    504,288/755,921.52 = 326,907.60/x
  3. Step 3: Cross multiply
    504,288x = 755,921.52 × 326,907.60
  4. Step 4: Simplify right side
    504,288x = 247,116,489,891.55
  5. Step 5: Solve for x
    x = 247,116,489,891.55/504,288
  6. Step 6: Final answer
    x = 490,030.48

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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.