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Finding the Fourth Proportional to 946.14, 1,418.76 and 484.13

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Solution

The fourth proportional to 946.14, 1,418.76 and 484.13 is: 725.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    946.14 : 1,418.76 = 484.13 : x
  2. Step 2: Convert to fraction form
    946.14/1,418.76 = 484.13/x
  3. Step 3: Cross multiply
    946.14x = 1,418.76 × 484.13
  4. Step 4: Simplify right side
    946.14x = 686,857.19
  5. Step 5: Solve for x
    x = 686,857.19/946.14
  6. Step 6: Final answer
    x = 725.96

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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.