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Finding the Fourth Proportional to 539.93, 809.06 and 400.52

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Solution

The fourth proportional to 539.93, 809.06 and 400.52 is: 600.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.93 : 809.06 = 400.52 : x
  2. Step 2: Convert to fraction form
    539.93/809.06 = 400.52/x
  3. Step 3: Cross multiply
    539.93x = 809.06 × 400.52
  4. Step 4: Simplify right side
    539.93x = 324,038.66
  5. Step 5: Solve for x
    x = 324,038.66/539.93
  6. Step 6: Final answer
    x = 600.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.