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Finding the Fourth Proportional to 541,909.90, 811,880.70 and 331,301.80

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Solution

The fourth proportional to 541,909.90, 811,880.70 and 331,301.80 is: 496,351.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,909.90 : 811,880.70 = 331,301.80 : x
  2. Step 2: Convert to fraction form
    541,909.90/811,880.70 = 331,301.80/x
  3. Step 3: Cross multiply
    541,909.90x = 811,880.70 × 331,301.80
  4. Step 4: Simplify right side
    541,909.90x = 268,977,537,295.26
  5. Step 5: Solve for x
    x = 268,977,537,295.26/541,909.90
  6. Step 6: Final answer
    x = 496,351.03

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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.