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Finding the Fourth Proportional to 490,805.40, 735,776.10 and 332,520.60

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Solution

The fourth proportional to 490,805.40, 735,776.10 and 332,520.60 is: 498,488.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,805.40 : 735,776.10 = 332,520.60 : x
  2. Step 2: Convert to fraction form
    490,805.40/735,776.10 = 332,520.60/x
  3. Step 3: Cross multiply
    490,805.40x = 735,776.10 × 332,520.60
  4. Step 4: Simplify right side
    490,805.40x = 244,660,710,237.66
  5. Step 5: Solve for x
    x = 244,660,710,237.66/490,805.40
  6. Step 6: Final answer
    x = 498,488.22

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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.