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Finding the Fourth Proportional to 1,333.73, 2,000.85 and 603.31

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Solution

The fourth proportional to 1,333.73, 2,000.85 and 603.31 is: 905.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333.73 : 2,000.85 = 603.31 : x
  2. Step 2: Convert to fraction form
    1,333.73/2,000.85 = 603.31/x
  3. Step 3: Cross multiply
    1,333.73x = 2,000.85 × 603.31
  4. Step 4: Simplify right side
    1,333.73x = 1,207,127.81
  5. Step 5: Solve for x
    x = 1,207,127.81/1,333.73
  6. Step 6: Final answer
    x = 905.08

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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.