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Finding the Fourth Proportional to 577.04, 866.28 and 449.36

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Solution

The fourth proportional to 577.04, 866.28 and 449.36 is: 674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.04 : 866.28 = 449.36 : x
  2. Step 2: Convert to fraction form
    577.04/866.28 = 449.36/x
  3. Step 3: Cross multiply
    577.04x = 866.28 × 449.36
  4. Step 4: Simplify right side
    577.04x = 389,271.58
  5. Step 5: Solve for x
    x = 389,271.58/577.04
  6. Step 6: Final answer
    x = 674.60

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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.