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Finding the Fourth Proportional to 613.02, 918.99 and 484.50

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Solution

The fourth proportional to 613.02, 918.99 and 484.50 is: 726.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.02 : 918.99 = 484.50 : x
  2. Step 2: Convert to fraction form
    613.02/918.99 = 484.50/x
  3. Step 3: Cross multiply
    613.02x = 918.99 × 484.50
  4. Step 4: Simplify right side
    613.02x = 445,250.66
  5. Step 5: Solve for x
    x = 445,250.66/613.02
  6. Step 6: Final answer
    x = 726.32

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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.