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Finding the Fourth Proportional to 577.48, 797.22 and 403

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Solution

The fourth proportional to 577.48, 797.22 and 403 is: 556.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.48 : 797.22 = 403 : x
  2. Step 2: Convert to fraction form
    577.48/797.22 = 403/x
  3. Step 3: Cross multiply
    577.48x = 797.22 × 403
  4. Step 4: Simplify right side
    577.48x = 321,279.66
  5. Step 5: Solve for x
    x = 321,279.66/577.48
  6. Step 6: Final answer
    x = 556.35

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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.