Home / 1,389,414.10-1,917,350.26-769,246.91

Finding the Fourth Proportional to 1,389,414.10, 1,917,350.26 and 769,246.91

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Solution

The fourth proportional to 1,389,414.10, 1,917,350.26 and 769,246.91 is: 1,061,537.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,414.10 : 1,917,350.26 = 769,246.91 : x
  2. Step 2: Convert to fraction form
    1,389,414.10/1,917,350.26 = 769,246.91/x
  3. Step 3: Cross multiply
    1,389,414.10x = 1,917,350.26 × 769,246.91
  4. Step 4: Simplify right side
    1,389,414.10x = 1,474,915,762,892.70
  5. Step 5: Solve for x
    x = 1,474,915,762,892.70/1,389,414.10
  6. Step 6: Final answer
    x = 1,061,537.93

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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.