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Finding the Fourth Proportional to 555.69, 834.66 and 482.79

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Solution

The fourth proportional to 555.69, 834.66 and 482.79 is: 725.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.69 : 834.66 = 482.79 : x
  2. Step 2: Convert to fraction form
    555.69/834.66 = 482.79/x
  3. Step 3: Cross multiply
    555.69x = 834.66 × 482.79
  4. Step 4: Simplify right side
    555.69x = 402,965.50
  5. Step 5: Solve for x
    x = 402,965.50/555.69
  6. Step 6: Final answer
    x = 725.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.