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Finding the Fourth Proportional to 1,001.73, 1,501.57 and 454.30

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Solution

The fourth proportional to 1,001.73, 1,501.57 and 454.30 is: 680.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001.73 : 1,501.57 = 454.30 : x
  2. Step 2: Convert to fraction form
    1,001.73/1,501.57 = 454.30/x
  3. Step 3: Cross multiply
    1,001.73x = 1,501.57 × 454.30
  4. Step 4: Simplify right side
    1,001.73x = 682,163.25
  5. Step 5: Solve for x
    x = 682,163.25/1,001.73
  6. Step 6: Final answer
    x = 680.99

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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.