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Finding the Fourth Proportional to 719.70, 994.32 and 610.38

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Solution

The fourth proportional to 719.70, 994.32 and 610.38 is: 843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    719.70 : 994.32 = 610.38 : x
  2. Step 2: Convert to fraction form
    719.70/994.32 = 610.38/x
  3. Step 3: Cross multiply
    719.70x = 994.32 × 610.38
  4. Step 4: Simplify right side
    719.70x = 606,913.04
  5. Step 5: Solve for x
    x = 606,913.04/719.70
  6. Step 6: Final answer
    x = 843.29

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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.