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Finding the Fourth Proportional to 880.52, 1,319.48 and 447.08

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Solution

The fourth proportional to 880.52, 1,319.48 and 447.08 is: 669.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.52 : 1,319.48 = 447.08 : x
  2. Step 2: Convert to fraction form
    880.52/1,319.48 = 447.08/x
  3. Step 3: Cross multiply
    880.52x = 1,319.48 × 447.08
  4. Step 4: Simplify right side
    880.52x = 589,913.12
  5. Step 5: Solve for x
    x = 589,913.12/880.52
  6. Step 6: Final answer
    x = 669.96

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1.5x scale

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.