Home / 1,617,804.80-2,428,262.40-819,987.20

Finding the Fourth Proportional to 1,617,804.80, 2,428,262.40 and 819,987.20

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Solution

The fourth proportional to 1,617,804.80, 2,428,262.40 and 819,987.20 is: 1,230,769.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617,804.80 : 2,428,262.40 = 819,987.20 : x
  2. Step 2: Convert to fraction form
    1,617,804.80/2,428,262.40 = 819,987.20/x
  3. Step 3: Cross multiply
    1,617,804.80x = 2,428,262.40 × 819,987.20
  4. Step 4: Simplify right side
    1,617,804.80x = 1,991,144,086,241.28
  5. Step 5: Solve for x
    x = 1,991,144,086,241.28/1,617,804.80
  6. Step 6: Final answer
    x = 1,230,769.06

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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.