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Finding the Fourth Proportional to 620.00, 849.25 and 612.10

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Solution

The fourth proportional to 620.00, 849.25 and 612.10 is: 838.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.00 : 849.25 = 612.10 : x
  2. Step 2: Convert to fraction form
    620.00/849.25 = 612.10/x
  3. Step 3: Cross multiply
    620.00x = 849.25 × 612.10
  4. Step 4: Simplify right side
    620.00x = 519,821.68
  5. Step 5: Solve for x
    x = 519,821.68/620.00
  6. Step 6: Final answer
    x = 838.43

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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.