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Finding the Fourth Proportional to 722.06, 995.54 and 535.46

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Solution

The fourth proportional to 722.06, 995.54 and 535.46 is: 738.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.06 : 995.54 = 535.46 : x
  2. Step 2: Convert to fraction form
    722.06/995.54 = 535.46/x
  3. Step 3: Cross multiply
    722.06x = 995.54 × 535.46
  4. Step 4: Simplify right side
    722.06x = 533,072.81
  5. Step 5: Solve for x
    x = 533,072.81/722.06
  6. Step 6: Final answer
    x = 738.26

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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.