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Finding the Fourth Proportional to 586.85, 878.45 and 343.04

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Solution

The fourth proportional to 586.85, 878.45 and 343.04 is: 513.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.85 : 878.45 = 343.04 : x
  2. Step 2: Convert to fraction form
    586.85/878.45 = 343.04/x
  3. Step 3: Cross multiply
    586.85x = 878.45 × 343.04
  4. Step 4: Simplify right side
    586.85x = 301,337.38
  5. Step 5: Solve for x
    x = 301,337.38/586.85
  6. Step 6: Final answer
    x = 513.49

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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.