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Finding the Fourth Proportional to 578,760.95, 798,723.30 and 324,109.91

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Solution

The fourth proportional to 578,760.95, 798,723.30 and 324,109.91 is: 447,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,760.95 : 798,723.30 = 324,109.91 : x
  2. Step 2: Convert to fraction form
    578,760.95/798,723.30 = 324,109.91/x
  3. Step 3: Cross multiply
    578,760.95x = 798,723.30 × 324,109.91
  4. Step 4: Simplify right side
    578,760.95x = 258,874,132,884.29
  5. Step 5: Solve for x
    x = 258,874,132,884.29/578,760.95
  6. Step 6: Final answer
    x = 447,290.26

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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.