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Finding the Fourth Proportional to 539,772.60, 809,270.10 and 303,187.80

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Solution

The fourth proportional to 539,772.60, 809,270.10 and 303,187.80 is: 454,563.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,772.60 : 809,270.10 = 303,187.80 : x
  2. Step 2: Convert to fraction form
    539,772.60/809,270.10 = 303,187.80/x
  3. Step 3: Cross multiply
    539,772.60x = 809,270.10 × 303,187.80
  4. Step 4: Simplify right side
    539,772.60x = 245,360,821,224.78
  5. Step 5: Solve for x
    x = 245,360,821,224.78/539,772.60
  6. Step 6: Final answer
    x = 454,563.31

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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.