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Finding the Fourth Proportional to 884.95, 1,326.99 and 514.88

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Solution

The fourth proportional to 884.95, 1,326.99 and 514.88 is: 772.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.95 : 1,326.99 = 514.88 : x
  2. Step 2: Convert to fraction form
    884.95/1,326.99 = 514.88/x
  3. Step 3: Cross multiply
    884.95x = 1,326.99 × 514.88
  4. Step 4: Simplify right side
    884.95x = 683,242.08
  5. Step 5: Solve for x
    x = 683,242.08/884.95
  6. Step 6: Final answer
    x = 772.07

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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.