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Finding the Fourth Proportional to 539,619.56, 809,432.60 and 240,029.72

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Solution

The fourth proportional to 539,619.56, 809,432.60 and 240,029.72 is: 360,046.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,619.56 : 809,432.60 = 240,029.72 : x
  2. Step 2: Convert to fraction form
    539,619.56/809,432.60 = 240,029.72/x
  3. Step 3: Cross multiply
    539,619.56x = 809,432.60 × 240,029.72
  4. Step 4: Simplify right side
    539,619.56x = 194,287,880,336.87
  5. Step 5: Solve for x
    x = 194,287,880,336.87/539,619.56
  6. Step 6: Final answer
    x = 360,046.03

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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.