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Finding the Fourth Proportional to 539,466.20, 809,199.30 and 371,504.60

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Solution

The fourth proportional to 539,466.20, 809,199.30 and 371,504.60 is: 557,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,466.20 : 809,199.30 = 371,504.60 : x
  2. Step 2: Convert to fraction form
    539,466.20/809,199.30 = 371,504.60/x
  3. Step 3: Cross multiply
    539,466.20x = 809,199.30 × 371,504.60
  4. Step 4: Simplify right side
    539,466.20x = 300,621,262,266.78
  5. Step 5: Solve for x
    x = 300,621,262,266.78/539,466.20
  6. Step 6: Final answer
    x = 557,256.90

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Similar ratio
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1.5x scale

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.