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Finding the Fourth Proportional to 555.66, 829.44 and 482.76

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Solution

The fourth proportional to 555.66, 829.44 and 482.76 is: 720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.66 : 829.44 = 482.76 : x
  2. Step 2: Convert to fraction form
    555.66/829.44 = 482.76/x
  3. Step 3: Cross multiply
    555.66x = 829.44 × 482.76
  4. Step 4: Simplify right side
    555.66x = 400,420.45
  5. Step 5: Solve for x
    x = 400,420.45/555.66
  6. Step 6: Final answer
    x = 720.62

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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.