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Finding the Fourth Proportional to 880.60, 1,214.67 and 526.27

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Solution

The fourth proportional to 880.60, 1,214.67 and 526.27 is: 725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.60 : 1,214.67 = 526.27 : x
  2. Step 2: Convert to fraction form
    880.60/1,214.67 = 526.27/x
  3. Step 3: Cross multiply
    880.60x = 1,214.67 × 526.27
  4. Step 4: Simplify right side
    880.60x = 639,244.38
  5. Step 5: Solve for x
    x = 639,244.38/880.60
  6. Step 6: Final answer
    x = 725.92

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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.