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Finding the Fourth Proportional to 501.73, 752.61 and 404.80

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Solution

The fourth proportional to 501.73, 752.61 and 404.80 is: 607.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.73 : 752.61 = 404.80 : x
  2. Step 2: Convert to fraction form
    501.73/752.61 = 404.80/x
  3. Step 3: Cross multiply
    501.73x = 752.61 × 404.80
  4. Step 4: Simplify right side
    501.73x = 304,656.53
  5. Step 5: Solve for x
    x = 304,656.53/501.73
  6. Step 6: Final answer
    x = 607.21

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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.