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Finding the Fourth Proportional to 539,483.76, 809,722.44 and 273,432.78

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Solution

The fourth proportional to 539,483.76, 809,722.44 and 273,432.78 is: 410,400.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,483.76 : 809,722.44 = 273,432.78 : x
  2. Step 2: Convert to fraction form
    539,483.76/809,722.44 = 273,432.78/x
  3. Step 3: Cross multiply
    539,483.76x = 809,722.44 × 273,432.78
  4. Step 4: Simplify right side
    539,483.76x = 221,404,657,797.58
  5. Step 5: Solve for x
    x = 221,404,657,797.58/539,483.76
  6. Step 6: Final answer
    x = 410,400.97

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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.