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Finding the Fourth Proportional to 575.07, 794.01 and 378.93

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Solution

The fourth proportional to 575.07, 794.01 and 378.93 is: 523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.07 : 794.01 = 378.93 : x
  2. Step 2: Convert to fraction form
    575.07/794.01 = 378.93/x
  3. Step 3: Cross multiply
    575.07x = 794.01 × 378.93
  4. Step 4: Simplify right side
    575.07x = 300,874.21
  5. Step 5: Solve for x
    x = 300,874.21/575.07
  6. Step 6: Final answer
    x = 523.20

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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.