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Finding the Fourth Proportional to 534,047.60, 800,812.20 and 297,138.80

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Solution

The fourth proportional to 534,047.60, 800,812.20 and 297,138.80 is: 445,563.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,047.60 : 800,812.20 = 297,138.80 : x
  2. Step 2: Convert to fraction form
    534,047.60/800,812.20 = 297,138.80/x
  3. Step 3: Cross multiply
    534,047.60x = 800,812.20 × 297,138.80
  4. Step 4: Simplify right side
    534,047.60x = 237,952,376,133.36
  5. Step 5: Solve for x
    x = 237,952,376,133.36/534,047.60
  6. Step 6: Final answer
    x = 445,563.98

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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.