Home / 1,377,180.70-1,900,555.52-765,359.26

Finding the Fourth Proportional to 1,377,180.70, 1,900,555.52 and 765,359.26

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Solution

The fourth proportional to 1,377,180.70, 1,900,555.52 and 765,359.26 is: 1,056,221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,180.70 : 1,900,555.52 = 765,359.26 : x
  2. Step 2: Convert to fraction form
    1,377,180.70/1,900,555.52 = 765,359.26/x
  3. Step 3: Cross multiply
    1,377,180.70x = 1,900,555.52 × 765,359.26
  4. Step 4: Simplify right side
    1,377,180.70x = 1,454,607,766,376.12
  5. Step 5: Solve for x
    x = 1,454,607,766,376.12/1,377,180.70
  6. Step 6: Final answer
    x = 1,056,221.43

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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.