Home / 1,431,028.91-1,974,821.37-786,435.27

Finding the Fourth Proportional to 1,431,028.91, 1,974,821.37 and 786,435.27

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Solution

The fourth proportional to 1,431,028.91, 1,974,821.37 and 786,435.27 is: 1,085,281.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,028.91 : 1,974,821.37 = 786,435.27 : x
  2. Step 2: Convert to fraction form
    1,431,028.91/1,974,821.37 = 786,435.27/x
  3. Step 3: Cross multiply
    1,431,028.91x = 1,974,821.37 × 786,435.27
  4. Step 4: Simplify right side
    1,431,028.91x = 1,553,069,177,317.72
  5. Step 5: Solve for x
    x = 1,553,069,177,317.72/1,431,028.91
  6. Step 6: Final answer
    x = 1,085,281.48

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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.