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Finding the Fourth Proportional to 500.04, 748.44 and 391.50

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Solution

The fourth proportional to 500.04, 748.44 and 391.50 is: 585.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.04 : 748.44 = 391.50 : x
  2. Step 2: Convert to fraction form
    500.04/748.44 = 391.50/x
  3. Step 3: Cross multiply
    500.04x = 748.44 × 391.50
  4. Step 4: Simplify right side
    500.04x = 293,014.26
  5. Step 5: Solve for x
    x = 293,014.26/500.04
  6. Step 6: Final answer
    x = 585.98

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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.