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Finding the Fourth Proportional to 716.00, 988.23 and 492.23

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Solution

The fourth proportional to 716.00, 988.23 and 492.23 is: 679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.00 : 988.23 = 492.23 : x
  2. Step 2: Convert to fraction form
    716.00/988.23 = 492.23/x
  3. Step 3: Cross multiply
    716.00x = 988.23 × 492.23
  4. Step 4: Simplify right side
    716.00x = 486,431.51
  5. Step 5: Solve for x
    x = 486,431.51/716.00
  6. Step 6: Final answer
    x = 679.38

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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.