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Finding the Fourth Proportional to 955.20, 1,434 and 468.72

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Solution

The fourth proportional to 955.20, 1,434 and 468.72 is: 703.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.20 : 1,434 = 468.72 : x
  2. Step 2: Convert to fraction form
    955.20/1,434 = 468.72/x
  3. Step 3: Cross multiply
    955.20x = 1,434 × 468.72
  4. Step 4: Simplify right side
    955.20x = 672,144.48
  5. Step 5: Solve for x
    x = 672,144.48/955.20
  6. Step 6: Final answer
    x = 703.67

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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.