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Finding the Fourth Proportional to 618.62, 928.99 and 549.37

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Solution

The fourth proportional to 618.62, 928.99 and 549.37 is: 825.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.62 : 928.99 = 549.37 : x
  2. Step 2: Convert to fraction form
    618.62/928.99 = 549.37/x
  3. Step 3: Cross multiply
    618.62x = 928.99 × 549.37
  4. Step 4: Simplify right side
    618.62x = 510,359.24
  5. Step 5: Solve for x
    x = 510,359.24/618.62
  6. Step 6: Final answer
    x = 825.00

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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.