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Finding the Fourth Proportional to 555.36, 834.72 and 448.48

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Solution

The fourth proportional to 555.36, 834.72 and 448.48 is: 674.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.36 : 834.72 = 448.48 : x
  2. Step 2: Convert to fraction form
    555.36/834.72 = 448.48/x
  3. Step 3: Cross multiply
    555.36x = 834.72 × 448.48
  4. Step 4: Simplify right side
    555.36x = 374,355.23
  5. Step 5: Solve for x
    x = 374,355.23/555.36
  6. Step 6: Final answer
    x = 674.08

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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.