Home / 1,858,078.32-2,786,448.12-643,325.04

Finding the Fourth Proportional to 1,858,078.32, 2,786,448.12 and 643,325.04

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Solution

The fourth proportional to 1,858,078.32, 2,786,448.12 and 643,325.04 is: 964,755.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858,078.32 : 2,786,448.12 = 643,325.04 : x
  2. Step 2: Convert to fraction form
    1,858,078.32/2,786,448.12 = 643,325.04/x
  3. Step 3: Cross multiply
    1,858,078.32x = 2,786,448.12 × 643,325.04
  4. Step 4: Simplify right side
    1,858,078.32x = 1,792,591,848,256.93
  5. Step 5: Solve for x
    x = 1,792,591,848,256.93/1,858,078.32
  6. Step 6: Final answer
    x = 964,755.81

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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.