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Finding the Fourth Proportional to 607.28, 839.00 and 577.31

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Solution

The fourth proportional to 607.28, 839.00 and 577.31 is: 797.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.28 : 839.00 = 577.31 : x
  2. Step 2: Convert to fraction form
    607.28/839.00 = 577.31/x
  3. Step 3: Cross multiply
    607.28x = 839.00 × 577.31
  4. Step 4: Simplify right side
    607.28x = 484,360.34
  5. Step 5: Solve for x
    x = 484,360.34/607.28
  6. Step 6: Final answer
    x = 797.60

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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.