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Finding the Fourth Proportional to 722.42, 996.33 and 470.41

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Solution

The fourth proportional to 722.42, 996.33 and 470.41 is: 648.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.42 : 996.33 = 470.41 : x
  2. Step 2: Convert to fraction form
    722.42/996.33 = 470.41/x
  3. Step 3: Cross multiply
    722.42x = 996.33 × 470.41
  4. Step 4: Simplify right side
    722.42x = 468,681.24
  5. Step 5: Solve for x
    x = 468,681.24/722.42
  6. Step 6: Final answer
    x = 648.76

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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.