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Finding the Fourth Proportional to 507.80, 760.44 and 400.88

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Solution

The fourth proportional to 507.80, 760.44 and 400.88 is: 600.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.80 : 760.44 = 400.88 : x
  2. Step 2: Convert to fraction form
    507.80/760.44 = 400.88/x
  3. Step 3: Cross multiply
    507.80x = 760.44 × 400.88
  4. Step 4: Simplify right side
    507.80x = 304,845.19
  5. Step 5: Solve for x
    x = 304,845.19/507.80
  6. Step 6: Final answer
    x = 600.33

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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.