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Finding the Fourth Proportional to 577.50, 797.04 and 438.36

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Solution

The fourth proportional to 577.50, 797.04 and 438.36 is: 605.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.50 : 797.04 = 438.36 : x
  2. Step 2: Convert to fraction form
    577.50/797.04 = 438.36/x
  3. Step 3: Cross multiply
    577.50x = 797.04 × 438.36
  4. Step 4: Simplify right side
    577.50x = 349,390.45
  5. Step 5: Solve for x
    x = 349,390.45/577.50
  6. Step 6: Final answer
    x = 605.01

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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.