Home / 3,619,121.60-5,428,509.60-1,222,731.20

Finding the Fourth Proportional to 3,619,121.60, 5,428,509.60 and 1,222,731.20

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Solution

The fourth proportional to 3,619,121.60, 5,428,509.60 and 1,222,731.20 is: 1,834,038.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619,121.60 : 5,428,509.60 = 1,222,731.20 : x
  2. Step 2: Convert to fraction form
    3,619,121.60/5,428,509.60 = 1,222,731.20/x
  3. Step 3: Cross multiply
    3,619,121.60x = 5,428,509.60 × 1,222,731.20
  4. Step 4: Simplify right side
    3,619,121.60x = 6,637,608,057,419.52
  5. Step 5: Solve for x
    x = 6,637,608,057,419.52/3,619,121.60
  6. Step 6: Final answer
    x = 1,834,038.42

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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.