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Finding the Fourth Proportional to 601.30, 900.45 and 381.26

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Solution

The fourth proportional to 601.30, 900.45 and 381.26 is: 570.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.30 : 900.45 = 381.26 : x
  2. Step 2: Convert to fraction form
    601.30/900.45 = 381.26/x
  3. Step 3: Cross multiply
    601.30x = 900.45 × 381.26
  4. Step 4: Simplify right side
    601.30x = 343,305.57
  5. Step 5: Solve for x
    x = 343,305.57/601.30
  6. Step 6: Final answer
    x = 570.94

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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.