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Finding the Fourth Proportional to 946.25, 1,413 and 773.27

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Solution

The fourth proportional to 946.25, 1,413 and 773.27 is: 1,154.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    946.25 : 1,413 = 773.27 : x
  2. Step 2: Convert to fraction form
    946.25/1,413 = 773.27/x
  3. Step 3: Cross multiply
    946.25x = 1,413 × 773.27
  4. Step 4: Simplify right side
    946.25x = 1,092,623.45
  5. Step 5: Solve for x
    x = 1,092,623.45/946.25
  6. Step 6: Final answer
    x = 1,154.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.