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Finding the Fourth Proportional to 556.81, 837.11 and 449.35

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Solution

The fourth proportional to 556.81, 837.11 and 449.35 is: 675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.81 : 837.11 = 449.35 : x
  2. Step 2: Convert to fraction form
    556.81/837.11 = 449.35/x
  3. Step 3: Cross multiply
    556.81x = 837.11 × 449.35
  4. Step 4: Simplify right side
    556.81x = 376,155.38
  5. Step 5: Solve for x
    x = 376,155.38/556.81
  6. Step 6: Final answer
    x = 675.55

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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.