Home / 727,917.60-1,091,359.44-278,259.60

Finding the Fourth Proportional to 727,917.60, 1,091,359.44 and 278,259.60

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Solution

The fourth proportional to 727,917.60, 1,091,359.44 and 278,259.60 is: 417,191.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,917.60 : 1,091,359.44 = 278,259.60 : x
  2. Step 2: Convert to fraction form
    727,917.60/1,091,359.44 = 278,259.60/x
  3. Step 3: Cross multiply
    727,917.60x = 1,091,359.44 × 278,259.60
  4. Step 4: Simplify right side
    727,917.60x = 303,681,241,230.62
  5. Step 5: Solve for x
    x = 303,681,241,230.62/727,917.60
  6. Step 6: Final answer
    x = 417,191.78

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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.