Home / 765,050.62-1,055,755.14-420,866.44

Finding the Fourth Proportional to 765,050.62, 1,055,755.14 and 420,866.44

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Solution

The fourth proportional to 765,050.62, 1,055,755.14 and 420,866.44 is: 580,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,050.62 : 1,055,755.14 = 420,866.44 : x
  2. Step 2: Convert to fraction form
    765,050.62/1,055,755.14 = 420,866.44/x
  3. Step 3: Cross multiply
    765,050.62x = 1,055,755.14 × 420,866.44
  4. Step 4: Simplify right side
    765,050.62x = 444,331,907,283.50
  5. Step 5: Solve for x
    x = 444,331,907,283.50/765,050.62
  6. Step 6: Final answer
    x = 580,787.59

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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.