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Finding the Fourth Proportional to 539,794.60, 809,303.10 and 303,209.80

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Solution

The fourth proportional to 539,794.60, 809,303.10 and 303,209.80 is: 454,596.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,794.60 : 809,303.10 = 303,209.80 : x
  2. Step 2: Convert to fraction form
    539,794.60/809,303.10 = 303,209.80/x
  3. Step 3: Cross multiply
    539,794.60x = 809,303.10 × 303,209.80
  4. Step 4: Simplify right side
    539,794.60x = 245,388,631,090.38
  5. Step 5: Solve for x
    x = 245,388,631,090.38/539,794.60
  6. Step 6: Final answer
    x = 454,596.31

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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.