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Finding the Fourth Proportional to 880.02, 1,214.52 and 658.58

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Solution

The fourth proportional to 880.02, 1,214.52 and 658.58 is: 908.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.02 : 1,214.52 = 658.58 : x
  2. Step 2: Convert to fraction form
    880.02/1,214.52 = 658.58/x
  3. Step 3: Cross multiply
    880.02x = 1,214.52 × 658.58
  4. Step 4: Simplify right side
    880.02x = 799,861.62
  5. Step 5: Solve for x
    x = 799,861.62/880.02
  6. Step 6: Final answer
    x = 908.91

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1.5x scale

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.