Home / 1,617,844.80-2,428,322.40-820,027.20

Finding the Fourth Proportional to 1,617,844.80, 2,428,322.40 and 820,027.20

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Solution

The fourth proportional to 1,617,844.80, 2,428,322.40 and 820,027.20 is: 1,230,829.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617,844.80 : 2,428,322.40 = 820,027.20 : x
  2. Step 2: Convert to fraction form
    1,617,844.80/2,428,322.40 = 820,027.20/x
  3. Step 3: Cross multiply
    1,617,844.80x = 2,428,322.40 × 820,027.20
  4. Step 4: Simplify right side
    1,617,844.80x = 1,991,290,418,369.28
  5. Step 5: Solve for x
    x = 1,991,290,418,369.28/1,617,844.80
  6. Step 6: Final answer
    x = 1,230,829.07

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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.