Home / 1,435,403.28-1,981,143.39-823,969.38

Finding the Fourth Proportional to 1,435,403.28, 1,981,143.39 and 823,969.38

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Solution

The fourth proportional to 1,435,403.28, 1,981,143.39 and 823,969.38 is: 1,137,242.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,403.28 : 1,981,143.39 = 823,969.38 : x
  2. Step 2: Convert to fraction form
    1,435,403.28/1,981,143.39 = 823,969.38/x
  3. Step 3: Cross multiply
    1,435,403.28x = 1,981,143.39 × 823,969.38
  4. Step 4: Simplify right side
    1,435,403.28x = 1,632,401,490,749.40
  5. Step 5: Solve for x
    x = 1,632,401,490,749.40/1,435,403.28
  6. Step 6: Final answer
    x = 1,137,242.41

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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.