Home / 893,743.80-1,339,860.42-387,922.20

Finding the Fourth Proportional to 893,743.80, 1,339,860.42 and 387,922.20

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Solution

The fourth proportional to 893,743.80, 1,339,860.42 and 387,922.20 is: 581,555.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,743.80 : 1,339,860.42 = 387,922.20 : x
  2. Step 2: Convert to fraction form
    893,743.80/1,339,860.42 = 387,922.20/x
  3. Step 3: Cross multiply
    893,743.80x = 1,339,860.42 × 387,922.20
  4. Step 4: Simplify right side
    893,743.80x = 519,761,601,819.32
  5. Step 5: Solve for x
    x = 519,761,601,819.32/893,743.80
  6. Step 6: Final answer
    x = 581,555.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.