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Finding the Fourth Proportional to 472.59, 704.73 and 462.13

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Solution

The fourth proportional to 472.59, 704.73 and 462.13 is: 689.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.59 : 704.73 = 462.13 : x
  2. Step 2: Convert to fraction form
    472.59/704.73 = 462.13/x
  3. Step 3: Cross multiply
    472.59x = 704.73 × 462.13
  4. Step 4: Simplify right side
    472.59x = 325,675.11
  5. Step 5: Solve for x
    x = 325,675.11/472.59
  6. Step 6: Final answer
    x = 689.13

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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.