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Finding the Fourth Proportional to 880,706.75, 1,321,060.17 and 215,858.75

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Solution

The fourth proportional to 880,706.75, 1,321,060.17 and 215,858.75 is: 323,788.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,706.75 : 1,321,060.17 = 215,858.75 : x
  2. Step 2: Convert to fraction form
    880,706.75/1,321,060.17 = 215,858.75/x
  3. Step 3: Cross multiply
    880,706.75x = 1,321,060.17 × 215,858.75
  4. Step 4: Simplify right side
    880,706.75x = 285,162,396,970.99
  5. Step 5: Solve for x
    x = 285,162,396,970.99/880,706.75
  6. Step 6: Final answer
    x = 323,788.14

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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.