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Finding the Fourth Proportional to 595.84, 822.72 and 479.92

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Solution

The fourth proportional to 595.84, 822.72 and 479.92 is: 662.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.84 : 822.72 = 479.92 : x
  2. Step 2: Convert to fraction form
    595.84/822.72 = 479.92/x
  3. Step 3: Cross multiply
    595.84x = 822.72 × 479.92
  4. Step 4: Simplify right side
    595.84x = 394,839.78
  5. Step 5: Solve for x
    x = 394,839.78/595.84
  6. Step 6: Final answer
    x = 662.66

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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.