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Finding the Fourth Proportional to 964.51, 1,331.03 and 522.42

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Solution

The fourth proportional to 964.51, 1,331.03 and 522.42 is: 720.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    964.51 : 1,331.03 = 522.42 : x
  2. Step 2: Convert to fraction form
    964.51/1,331.03 = 522.42/x
  3. Step 3: Cross multiply
    964.51x = 1,331.03 × 522.42
  4. Step 4: Simplify right side
    964.51x = 695,347.43
  5. Step 5: Solve for x
    x = 695,347.43/964.51
  6. Step 6: Final answer
    x = 720.94

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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.