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Finding the Fourth Proportional to 620.44, 851.12 and 583.18

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Solution

The fourth proportional to 620.44, 851.12 and 583.18 is: 800.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.44 : 851.12 = 583.18 : x
  2. Step 2: Convert to fraction form
    620.44/851.12 = 583.18/x
  3. Step 3: Cross multiply
    620.44x = 851.12 × 583.18
  4. Step 4: Simplify right side
    620.44x = 496,356.16
  5. Step 5: Solve for x
    x = 496,356.16/620.44
  6. Step 6: Final answer
    x = 800.01

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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.