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Finding the Fourth Proportional to 955.46, 1,433.20 and 522.38

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Solution

The fourth proportional to 955.46, 1,433.20 and 522.38 is: 783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.46 : 1,433.20 = 522.38 : x
  2. Step 2: Convert to fraction form
    955.46/1,433.20 = 522.38/x
  3. Step 3: Cross multiply
    955.46x = 1,433.20 × 522.38
  4. Step 4: Simplify right side
    955.46x = 748,675.02
  5. Step 5: Solve for x
    x = 748,675.02/955.46
  6. Step 6: Final answer
    x = 783.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.