Home / 1,145,793.42-1,581,239.80-783,976.14

Finding the Fourth Proportional to 1,145,793.42, 1,581,239.80 and 783,976.14

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Solution

The fourth proportional to 1,145,793.42, 1,581,239.80 and 783,976.14 is: 1,081,917.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,793.42 : 1,581,239.80 = 783,976.14 : x
  2. Step 2: Convert to fraction form
    1,145,793.42/1,581,239.80 = 783,976.14/x
  3. Step 3: Cross multiply
    1,145,793.42x = 1,581,239.80 × 783,976.14
  4. Step 4: Simplify right side
    1,145,793.42x = 1,239,654,274,818.37
  5. Step 5: Solve for x
    x = 1,239,654,274,818.37/1,145,793.42
  6. Step 6: Final answer
    x = 1,081,917.78

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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.