Home / 1,243,020.20-1,859,864.70-823,116.20

Finding the Fourth Proportional to 1,243,020.20, 1,859,864.70 and 823,116.20

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Solution

The fourth proportional to 1,243,020.20, 1,859,864.70 and 823,116.20 is: 1,231,584.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,020.20 : 1,859,864.70 = 823,116.20 : x
  2. Step 2: Convert to fraction form
    1,243,020.20/1,859,864.70 = 823,116.20/x
  3. Step 3: Cross multiply
    1,243,020.20x = 1,859,864.70 × 823,116.20
  4. Step 4: Simplify right side
    1,243,020.20x = 1,530,884,764,378.14
  5. Step 5: Solve for x
    x = 1,530,884,764,378.14/1,243,020.20
  6. Step 6: Final answer
    x = 1,231,584.78

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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.