Home / 827,231.70-1,240,847.55-661,343.70

Finding the Fourth Proportional to 827,231.70, 1,240,847.55 and 661,343.70

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Solution

The fourth proportional to 827,231.70, 1,240,847.55 and 661,343.70 is: 992,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,231.70 : 1,240,847.55 = 661,343.70 : x
  2. Step 2: Convert to fraction form
    827,231.70/1,240,847.55 = 661,343.70/x
  3. Step 3: Cross multiply
    827,231.70x = 1,240,847.55 × 661,343.70
  4. Step 4: Simplify right side
    827,231.70x = 820,626,709,852.94
  5. Step 5: Solve for x
    x = 820,626,709,852.94/827,231.70
  6. Step 6: Final answer
    x = 992,015.55

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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.