Home / 1,255,007.20-1,731,843.62-711,149.50

Finding the Fourth Proportional to 1,255,007.20, 1,731,843.62 and 711,149.50

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Solution

The fourth proportional to 1,255,007.20, 1,731,843.62 and 711,149.50 is: 981,348.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,007.20 : 1,731,843.62 = 711,149.50 : x
  2. Step 2: Convert to fraction form
    1,255,007.20/1,731,843.62 = 711,149.50/x
  3. Step 3: Cross multiply
    1,255,007.20x = 1,731,843.62 × 711,149.50
  4. Step 4: Simplify right side
    1,255,007.20x = 1,231,599,724,441.19
  5. Step 5: Solve for x
    x = 1,231,599,724,441.19/1,255,007.20
  6. Step 6: Final answer
    x = 981,348.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.