Home / 1,617,687.40-2,428,499.40-818,557.60

Finding the Fourth Proportional to 1,617,687.40, 2,428,499.40 and 818,557.60

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Solution

The fourth proportional to 1,617,687.40, 2,428,499.40 and 818,557.60 is: 1,228,832.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617,687.40 : 2,428,499.40 = 818,557.60 : x
  2. Step 2: Convert to fraction form
    1,617,687.40/2,428,499.40 = 818,557.60/x
  3. Step 3: Cross multiply
    1,617,687.40x = 2,428,499.40 × 818,557.60
  4. Step 4: Simplify right side
    1,617,687.40x = 1,987,866,640,465.44
  5. Step 5: Solve for x
    x = 1,987,866,640,465.44/1,617,687.40
  6. Step 6: Final answer
    x = 1,228,832.37

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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.