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Finding the Fourth Proportional to 722.77, 996.87 and 623.37

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Solution

The fourth proportional to 722.77, 996.87 and 623.37 is: 859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.77 : 996.87 = 623.37 : x
  2. Step 2: Convert to fraction form
    722.77/996.87 = 623.37/x
  3. Step 3: Cross multiply
    722.77x = 996.87 × 623.37
  4. Step 4: Simplify right side
    722.77x = 621,418.85
  5. Step 5: Solve for x
    x = 621,418.85/722.77
  6. Step 6: Final answer
    x = 859.77

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1.5x scale

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.