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Finding the Fourth Proportional to 480.95, 715.67 and 479.33

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Solution

The fourth proportional to 480.95, 715.67 and 479.33 is: 713.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.95 : 715.67 = 479.33 : x
  2. Step 2: Convert to fraction form
    480.95/715.67 = 479.33/x
  3. Step 3: Cross multiply
    480.95x = 715.67 × 479.33
  4. Step 4: Simplify right side
    480.95x = 343,036.13
  5. Step 5: Solve for x
    x = 343,036.13/480.95
  6. Step 6: Final answer
    x = 713.25

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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.