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Finding the Fourth Proportional to 716.90, 995.99 and 708.26

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Solution

The fourth proportional to 716.90, 995.99 and 708.26 is: 983.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.90 : 995.99 = 708.26 : x
  2. Step 2: Convert to fraction form
    716.90/995.99 = 708.26/x
  3. Step 3: Cross multiply
    716.90x = 995.99 × 708.26
  4. Step 4: Simplify right side
    716.90x = 705,411.36
  5. Step 5: Solve for x
    x = 705,411.36/716.90
  6. Step 6: Final answer
    x = 983.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.