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Finding the Fourth Proportional to 479.70, 723.38 and 473.19

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Solution

The fourth proportional to 479.70, 723.38 and 473.19 is: 713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.70 : 723.38 = 473.19 : x
  2. Step 2: Convert to fraction form
    479.70/723.38 = 473.19/x
  3. Step 3: Cross multiply
    479.70x = 723.38 × 473.19
  4. Step 4: Simplify right side
    479.70x = 342,296.18
  5. Step 5: Solve for x
    x = 342,296.18/479.70
  6. Step 6: Final answer
    x = 713.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.