Home / 1,203,927.87-1,806,169.73-405,189.90

Finding the Fourth Proportional to 1,203,927.87, 1,806,169.73 and 405,189.90

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Solution

The fourth proportional to 1,203,927.87, 1,806,169.73 and 405,189.90 is: 607,878.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,927.87 : 1,806,169.73 = 405,189.90 : x
  2. Step 2: Convert to fraction form
    1,203,927.87/1,806,169.73 = 405,189.90/x
  3. Step 3: Cross multiply
    1,203,927.87x = 1,806,169.73 × 405,189.90
  4. Step 4: Simplify right side
    1,203,927.87x = 731,841,732,281.73
  5. Step 5: Solve for x
    x = 731,841,732,281.73/1,203,927.87
  6. Step 6: Final answer
    x = 607,878.39

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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.