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Finding the Fourth Proportional to 577.92, 798.18 and 447.50

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Solution

The fourth proportional to 577.92, 798.18 and 447.50 is: 618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.92 : 798.18 = 447.50 : x
  2. Step 2: Convert to fraction form
    577.92/798.18 = 447.50/x
  3. Step 3: Cross multiply
    577.92x = 798.18 × 447.50
  4. Step 4: Simplify right side
    577.92x = 357,185.55
  5. Step 5: Solve for x
    x = 357,185.55/577.92
  6. Step 6: Final answer
    x = 618.05

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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.