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Finding the Fourth Proportional to 479.23, 713.52 and 476.53

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Solution

The fourth proportional to 479.23, 713.52 and 476.53 is: 709.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.23 : 713.52 = 476.53 : x
  2. Step 2: Convert to fraction form
    479.23/713.52 = 476.53/x
  3. Step 3: Cross multiply
    479.23x = 713.52 × 476.53
  4. Step 4: Simplify right side
    479.23x = 340,013.69
  5. Step 5: Solve for x
    x = 340,013.69/479.23
  6. Step 6: Final answer
    x = 709.50

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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.