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Finding the Fourth Proportional to 479.46, 715.95 and 474.36

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Solution

The fourth proportional to 479.46, 715.95 and 474.36 is: 708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.46 : 715.95 = 474.36 : x
  2. Step 2: Convert to fraction form
    479.46/715.95 = 474.36/x
  3. Step 3: Cross multiply
    479.46x = 715.95 × 474.36
  4. Step 4: Simplify right side
    479.46x = 339,618.04
  5. Step 5: Solve for x
    x = 339,618.04/479.46
  6. Step 6: Final answer
    x = 708.33

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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.