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Finding the Fourth Proportional to 549.99, 820.73 and 462.51

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Solution

The fourth proportional to 549.99, 820.73 and 462.51 is: 690.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.99 : 820.73 = 462.51 : x
  2. Step 2: Convert to fraction form
    549.99/820.73 = 462.51/x
  3. Step 3: Cross multiply
    549.99x = 820.73 × 462.51
  4. Step 4: Simplify right side
    549.99x = 379,596.99
  5. Step 5: Solve for x
    x = 379,596.99/549.99
  6. Step 6: Final answer
    x = 690.19

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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.