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Finding the Fourth Proportional to 590.49, 885.02 and 518.49

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Solution

The fourth proportional to 590.49, 885.02 and 518.49 is: 777.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.49 : 885.02 = 518.49 : x
  2. Step 2: Convert to fraction form
    590.49/885.02 = 518.49/x
  3. Step 3: Cross multiply
    590.49x = 885.02 × 518.49
  4. Step 4: Simplify right side
    590.49x = 458,871.43
  5. Step 5: Solve for x
    x = 458,871.43/590.49
  6. Step 6: Final answer
    x = 777.10

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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.