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Finding the Fourth Proportional to 603, 899.80 and 548.46

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Solution

The fourth proportional to 603, 899.80 and 548.46 is: 818.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    603 : 899.80 = 548.46 : x
  2. Step 2: Convert to fraction form
    603/899.80 = 548.46/x
  3. Step 3: Cross multiply
    603x = 899.80 × 548.46
  4. Step 4: Simplify right side
    603x = 493,502.94
  5. Step 5: Solve for x
    x = 493,502.94/603
  6. Step 6: Final answer
    x = 818.41

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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.