Home / 1,427,238.72-2,141,556.30-628,419.96

Finding the Fourth Proportional to 1,427,238.72, 2,141,556.30 and 628,419.96

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Solution

The fourth proportional to 1,427,238.72, 2,141,556.30 and 628,419.96 is: 942,937.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,238.72 : 2,141,556.30 = 628,419.96 : x
  2. Step 2: Convert to fraction form
    1,427,238.72/2,141,556.30 = 628,419.96/x
  3. Step 3: Cross multiply
    1,427,238.72x = 2,141,556.30 × 628,419.96
  4. Step 4: Simplify right side
    1,427,238.72x = 1,345,796,724,383.75
  5. Step 5: Solve for x
    x = 1,345,796,724,383.75/1,427,238.72
  6. Step 6: Final answer
    x = 942,937.37

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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.