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Finding the Fourth Proportional to 674.60, 946.60 and 674.60

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Solution

The fourth proportional to 674.60, 946.60 and 674.60 is: 946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.60 : 946.60 = 674.60 : x
  2. Step 2: Convert to fraction form
    674.60/946.60 = 674.60/x
  3. Step 3: Cross multiply
    674.60x = 946.60 × 674.60
  4. Step 4: Simplify right side
    674.60x = 638,576.36
  5. Step 5: Solve for x
    x = 638,576.36/674.60
  6. Step 6: Final answer
    x = 946.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.