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Finding the Fourth Proportional to 473.64, 709.38 and 436.92

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Solution

The fourth proportional to 473.64, 709.38 and 436.92 is: 654.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.64 : 709.38 = 436.92 : x
  2. Step 2: Convert to fraction form
    473.64/709.38 = 436.92/x
  3. Step 3: Cross multiply
    473.64x = 709.38 × 436.92
  4. Step 4: Simplify right side
    473.64x = 309,942.31
  5. Step 5: Solve for x
    x = 309,942.31/473.64
  6. Step 6: Final answer
    x = 654.38

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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.