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Finding the Fourth Proportional to 964.93, 1,331.22 and 550.93

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Solution

The fourth proportional to 964.93, 1,331.22 and 550.93 is: 760.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    964.93 : 1,331.22 = 550.93 : x
  2. Step 2: Convert to fraction form
    964.93/1,331.22 = 550.93/x
  3. Step 3: Cross multiply
    964.93x = 1,331.22 × 550.93
  4. Step 4: Simplify right side
    964.93x = 733,409.03
  5. Step 5: Solve for x
    x = 733,409.03/964.93
  6. Step 6: Final answer
    x = 760.06

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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.