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Finding the Fourth Proportional to 524.18, 785.87 and 479.03

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Solution

The fourth proportional to 524.18, 785.87 and 479.03 is: 718.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.18 : 785.87 = 479.03 : x
  2. Step 2: Convert to fraction form
    524.18/785.87 = 479.03/x
  3. Step 3: Cross multiply
    524.18x = 785.87 × 479.03
  4. Step 4: Simplify right side
    524.18x = 376,450.78
  5. Step 5: Solve for x
    x = 376,450.78/524.18
  6. Step 6: Final answer
    x = 718.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.