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Finding the Fourth Proportional to 577.83, 797.73 and 386.34

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Solution

The fourth proportional to 577.83, 797.73 and 386.34 is: 533.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.83 : 797.73 = 386.34 : x
  2. Step 2: Convert to fraction form
    577.83/797.73 = 386.34/x
  3. Step 3: Cross multiply
    577.83x = 797.73 × 386.34
  4. Step 4: Simplify right side
    577.83x = 308,195.01
  5. Step 5: Solve for x
    x = 308,195.01/577.83
  6. Step 6: Final answer
    x = 533.37

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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.