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Finding the Fourth Proportional to 949.89, 1,311.45 and 601.17

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Solution

The fourth proportional to 949.89, 1,311.45 and 601.17 is: 830.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.89 : 1,311.45 = 601.17 : x
  2. Step 2: Convert to fraction form
    949.89/1,311.45 = 601.17/x
  3. Step 3: Cross multiply
    949.89x = 1,311.45 × 601.17
  4. Step 4: Simplify right side
    949.89x = 788,404.40
  5. Step 5: Solve for x
    x = 788,404.40/949.89
  6. Step 6: Final answer
    x = 830.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.