Home / 1,428,480.03-1,971,205.39-783,941.75

Finding the Fourth Proportional to 1,428,480.03, 1,971,205.39 and 783,941.75

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Solution

The fourth proportional to 1,428,480.03, 1,971,205.39 and 783,941.75 is: 1,081,786.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,480.03 : 1,971,205.39 = 783,941.75 : x
  2. Step 2: Convert to fraction form
    1,428,480.03/1,971,205.39 = 783,941.75/x
  3. Step 3: Cross multiply
    1,428,480.03x = 1,971,205.39 × 783,941.75
  4. Step 4: Simplify right side
    1,428,480.03x = 1,545,310,203,046.03
  5. Step 5: Solve for x
    x = 1,545,310,203,046.03/1,428,480.03
  6. Step 6: Final answer
    x = 1,081,786.35

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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.