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Finding the Fourth Proportional to 540,725.85, 809,388.14 and 371,254.41

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Solution

The fourth proportional to 540,725.85, 809,388.14 and 371,254.41 is: 555,713.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,725.85 : 809,388.14 = 371,254.41 : x
  2. Step 2: Convert to fraction form
    540,725.85/809,388.14 = 371,254.41/x
  3. Step 3: Cross multiply
    540,725.85x = 809,388.14 × 371,254.41
  4. Step 4: Simplify right side
    540,725.85x = 300,488,914,520.43
  5. Step 5: Solve for x
    x = 300,488,914,520.43/540,725.85
  6. Step 6: Final answer
    x = 555,713.98

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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.