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Finding the Fourth Proportional to 722.01, 996.00 and 427.07

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Solution

The fourth proportional to 722.01, 996.00 and 427.07 is: 589.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.01 : 996.00 = 427.07 : x
  2. Step 2: Convert to fraction form
    722.01/996.00 = 427.07/x
  3. Step 3: Cross multiply
    722.01x = 996.00 × 427.07
  4. Step 4: Simplify right side
    722.01x = 425,362.61
  5. Step 5: Solve for x
    x = 425,362.61/722.01
  6. Step 6: Final answer
    x = 589.13

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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.