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Finding the Fourth Proportional to 596.90, 822.80 and 486.18

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Solution

The fourth proportional to 596.90, 822.80 and 486.18 is: 670.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    596.90 : 822.80 = 486.18 : x
  2. Step 2: Convert to fraction form
    596.90/822.80 = 486.18/x
  3. Step 3: Cross multiply
    596.90x = 822.80 × 486.18
  4. Step 4: Simplify right side
    596.90x = 400,026.47
  5. Step 5: Solve for x
    x = 400,026.47/596.90
  6. Step 6: Final answer
    x = 670.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.