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Finding the Fourth Proportional to 555.36, 829.07 and 482.48

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Solution

The fourth proportional to 555.36, 829.07 and 482.48 is: 720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.36 : 829.07 = 482.48 : x
  2. Step 2: Convert to fraction form
    555.36/829.07 = 482.48/x
  3. Step 3: Cross multiply
    555.36x = 829.07 × 482.48
  4. Step 4: Simplify right side
    555.36x = 400,009.69
  5. Step 5: Solve for x
    x = 400,009.69/555.36
  6. Step 6: Final answer
    x = 720.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.