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Finding the Fourth Proportional to 586.58, 881.09 and 449.15

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Solution

The fourth proportional to 586.58, 881.09 and 449.15 is: 674.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.58 : 881.09 = 449.15 : x
  2. Step 2: Convert to fraction form
    586.58/881.09 = 449.15/x
  3. Step 3: Cross multiply
    586.58x = 881.09 × 449.15
  4. Step 4: Simplify right side
    586.58x = 395,741.57
  5. Step 5: Solve for x
    x = 395,741.57/586.58
  6. Step 6: Final answer
    x = 674.66

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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.