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Finding the Fourth Proportional to 583.17, 804.63 and 397.27

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Solution

The fourth proportional to 583.17, 804.63 and 397.27 is: 548.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.17 : 804.63 = 397.27 : x
  2. Step 2: Convert to fraction form
    583.17/804.63 = 397.27/x
  3. Step 3: Cross multiply
    583.17x = 804.63 × 397.27
  4. Step 4: Simplify right side
    583.17x = 319,655.36
  5. Step 5: Solve for x
    x = 319,655.36/583.17
  6. Step 6: Final answer
    x = 548.13

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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.