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Finding the Fourth Proportional to 809,271.80, 1,214,393.70 and 335,907.80

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Solution

The fourth proportional to 809,271.80, 1,214,393.70 and 335,907.80 is: 504,063.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,271.80 : 1,214,393.70 = 335,907.80 : x
  2. Step 2: Convert to fraction form
    809,271.80/1,214,393.70 = 335,907.80/x
  3. Step 3: Cross multiply
    809,271.80x = 1,214,393.70 × 335,907.80
  4. Step 4: Simplify right side
    809,271.80x = 407,924,316,100.86
  5. Step 5: Solve for x
    x = 407,924,316,100.86/809,271.80
  6. Step 6: Final answer
    x = 504,063.43

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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.