Home / 1,427,393.80-1,969,800.42-823,781.80

Finding the Fourth Proportional to 1,427,393.80, 1,969,800.42 and 823,781.80

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Solution

The fourth proportional to 1,427,393.80, 1,969,800.42 and 823,781.80 is: 1,136,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,393.80 : 1,969,800.42 = 823,781.80 : x
  2. Step 2: Convert to fraction form
    1,427,393.80/1,969,800.42 = 823,781.80/x
  3. Step 3: Cross multiply
    1,427,393.80x = 1,969,800.42 × 823,781.80
  4. Step 4: Simplify right side
    1,427,393.80x = 1,622,685,735,628.36
  5. Step 5: Solve for x
    x = 1,622,685,735,628.36/1,427,393.80
  6. Step 6: Final answer
    x = 1,136,817.14

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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.