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Finding the Fourth Proportional to 880.93, 1,320.99 and 441.91

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Solution

The fourth proportional to 880.93, 1,320.99 and 441.91 is: 662.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.93 : 1,320.99 = 441.91 : x
  2. Step 2: Convert to fraction form
    880.93/1,320.99 = 441.91/x
  3. Step 3: Cross multiply
    880.93x = 1,320.99 × 441.91
  4. Step 4: Simplify right side
    880.93x = 583,758.69
  5. Step 5: Solve for x
    x = 583,758.69/880.93
  6. Step 6: Final answer
    x = 662.66

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Double scale
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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.