Home / 1,428,414.94-1,971,207.05-783,845.90

Finding the Fourth Proportional to 1,428,414.94, 1,971,207.05 and 783,845.90

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Solution

The fourth proportional to 1,428,414.94, 1,971,207.05 and 783,845.90 is: 1,081,704.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,414.94 : 1,971,207.05 = 783,845.90 : x
  2. Step 2: Convert to fraction form
    1,428,414.94/1,971,207.05 = 783,845.90/x
  3. Step 3: Cross multiply
    1,428,414.94x = 1,971,207.05 × 783,845.90
  4. Step 4: Simplify right side
    1,428,414.94x = 1,545,122,564,193.60
  5. Step 5: Solve for x
    x = 1,545,122,564,193.60/1,428,414.94
  6. Step 6: Final answer
    x = 1,081,704.29

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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.