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Finding the Fourth Proportional to 507.44, 761.52 and 379.52

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Solution

The fourth proportional to 507.44, 761.52 and 379.52 is: 569.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.44 : 761.52 = 379.52 : x
  2. Step 2: Convert to fraction form
    507.44/761.52 = 379.52/x
  3. Step 3: Cross multiply
    507.44x = 761.52 × 379.52
  4. Step 4: Simplify right side
    507.44x = 289,012.07
  5. Step 5: Solve for x
    x = 289,012.07/507.44
  6. Step 6: Final answer
    x = 569.55

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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.