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Finding the Fourth Proportional to 500.69, 751.40 and 404.34

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Solution

The fourth proportional to 500.69, 751.40 and 404.34 is: 606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.69 : 751.40 = 404.34 : x
  2. Step 2: Convert to fraction form
    500.69/751.40 = 404.34/x
  3. Step 3: Cross multiply
    500.69x = 751.40 × 404.34
  4. Step 4: Simplify right side
    500.69x = 303,821.08
  5. Step 5: Solve for x
    x = 303,821.08/500.69
  6. Step 6: Final answer
    x = 606.80

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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.