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Finding the Fourth Proportional to 501.28, 755.77 and 494.80

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Solution

The fourth proportional to 501.28, 755.77 and 494.80 is: 746.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.28 : 755.77 = 494.80 : x
  2. Step 2: Convert to fraction form
    501.28/755.77 = 494.80/x
  3. Step 3: Cross multiply
    501.28x = 755.77 × 494.80
  4. Step 4: Simplify right side
    501.28x = 373,955.00
  5. Step 5: Solve for x
    x = 373,955.00/501.28
  6. Step 6: Final answer
    x = 746.00

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.