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Finding the Fourth Proportional to 556.74, 833.88 and 448.60

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Solution

The fourth proportional to 556.74, 833.88 and 448.60 is: 671.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.74 : 833.88 = 448.60 : x
  2. Step 2: Convert to fraction form
    556.74/833.88 = 448.60/x
  3. Step 3: Cross multiply
    556.74x = 833.88 × 448.60
  4. Step 4: Simplify right side
    556.74x = 374,078.57
  5. Step 5: Solve for x
    x = 374,078.57/556.74
  6. Step 6: Final answer
    x = 671.91

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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.