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Finding the Fourth Proportional to 583.71, 803.94 and 539.91

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Solution

The fourth proportional to 583.71, 803.94 and 539.91 is: 743.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.71 : 803.94 = 539.91 : x
  2. Step 2: Convert to fraction form
    583.71/803.94 = 539.91/x
  3. Step 3: Cross multiply
    583.71x = 803.94 × 539.91
  4. Step 4: Simplify right side
    583.71x = 434,055.25
  5. Step 5: Solve for x
    x = 434,055.25/583.71
  6. Step 6: Final answer
    x = 743.61

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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.