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Finding the Fourth Proportional to 668.93, 919.22 and 544.32

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Solution

The fourth proportional to 668.93, 919.22 and 544.32 is: 747.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    668.93 : 919.22 = 544.32 : x
  2. Step 2: Convert to fraction form
    668.93/919.22 = 544.32/x
  3. Step 3: Cross multiply
    668.93x = 919.22 × 544.32
  4. Step 4: Simplify right side
    668.93x = 500,347.11
  5. Step 5: Solve for x
    x = 500,347.11/668.93
  6. Step 6: Final answer
    x = 747.99

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.