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Finding the Fourth Proportional to 543,308.20, 814,962.30 and 539,371.60

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Solution

The fourth proportional to 543,308.20, 814,962.30 and 539,371.60 is: 809,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,308.20 : 814,962.30 = 539,371.60 : x
  2. Step 2: Convert to fraction form
    543,308.20/814,962.30 = 539,371.60/x
  3. Step 3: Cross multiply
    543,308.20x = 814,962.30 × 539,371.60
  4. Step 4: Simplify right side
    543,308.20x = 439,567,519,690.68
  5. Step 5: Solve for x
    x = 439,567,519,690.68/543,308.20
  6. Step 6: Final answer
    x = 809,057.40

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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.