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Finding the Fourth Proportional to 726.57, 995.39 and 698.83

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Solution

The fourth proportional to 726.57, 995.39 and 698.83 is: 957.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    726.57 : 995.39 = 698.83 : x
  2. Step 2: Convert to fraction form
    726.57/995.39 = 698.83/x
  3. Step 3: Cross multiply
    726.57x = 995.39 × 698.83
  4. Step 4: Simplify right side
    726.57x = 695,605.03
  5. Step 5: Solve for x
    x = 695,605.03/726.57
  6. Step 6: Final answer
    x = 957.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.