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Finding the Fourth Proportional to 578,840, 798,799.20 and 324,273.20

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Solution

The fourth proportional to 578,840, 798,799.20 and 324,273.20 is: 447,497.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,840 : 798,799.20 = 324,273.20 : x
  2. Step 2: Convert to fraction form
    578,840/798,799.20 = 324,273.20/x
  3. Step 3: Cross multiply
    578,840x = 798,799.20 × 324,273.20
  4. Step 4: Simplify right side
    578,840x = 259,029,172,741.44
  5. Step 5: Solve for x
    x = 259,029,172,741.44/578,840
  6. Step 6: Final answer
    x = 447,497.02

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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.