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Finding the Fourth Proportional to 576.06, 794.43 and 401.46

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Solution

The fourth proportional to 576.06, 794.43 and 401.46 is: 553.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.06 : 794.43 = 401.46 : x
  2. Step 2: Convert to fraction form
    576.06/794.43 = 401.46/x
  3. Step 3: Cross multiply
    576.06x = 794.43 × 401.46
  4. Step 4: Simplify right side
    576.06x = 318,931.87
  5. Step 5: Solve for x
    x = 318,931.87/576.06
  6. Step 6: Final answer
    x = 553.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.