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Finding the Fourth Proportional to 473.42, 704.56 and 456.14

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Solution

The fourth proportional to 473.42, 704.56 and 456.14 is: 678.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.42 : 704.56 = 456.14 : x
  2. Step 2: Convert to fraction form
    473.42/704.56 = 456.14/x
  3. Step 3: Cross multiply
    473.42x = 704.56 × 456.14
  4. Step 4: Simplify right side
    473.42x = 321,378.00
  5. Step 5: Solve for x
    x = 321,378.00/473.42
  6. Step 6: Final answer
    x = 678.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.