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Finding the Fourth Proportional to 934.50, 1,400.94 and 659.10

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Solution

The fourth proportional to 934.50, 1,400.94 and 659.10 is: 988.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.50 : 1,400.94 = 659.10 : x
  2. Step 2: Convert to fraction form
    934.50/1,400.94 = 659.10/x
  3. Step 3: Cross multiply
    934.50x = 1,400.94 × 659.10
  4. Step 4: Simplify right side
    934.50x = 923,359.55
  5. Step 5: Solve for x
    x = 923,359.55/934.50
  6. Step 6: Final answer
    x = 988.08

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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.