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Finding the Fourth Proportional to 722.13, 996.04 and 442.00

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Solution

The fourth proportional to 722.13, 996.04 and 442.00 is: 609.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.13 : 996.04 = 442.00 : x
  2. Step 2: Convert to fraction form
    722.13/996.04 = 442.00/x
  3. Step 3: Cross multiply
    722.13x = 996.04 × 442.00
  4. Step 4: Simplify right side
    722.13x = 440,248.99
  5. Step 5: Solve for x
    x = 440,248.99/722.13
  6. Step 6: Final answer
    x = 609.66

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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.