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Finding the Fourth Proportional to 722.41, 995.61 and 525.58

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Solution

The fourth proportional to 722.41, 995.61 and 525.58 is: 724.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.41 : 995.61 = 525.58 : x
  2. Step 2: Convert to fraction form
    722.41/995.61 = 525.58/x
  3. Step 3: Cross multiply
    722.41x = 995.61 × 525.58
  4. Step 4: Simplify right side
    722.41x = 523,272.70
  5. Step 5: Solve for x
    x = 523,272.70/722.41
  6. Step 6: Final answer
    x = 724.34

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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.