Home / 1,217,138.28-1,825,749.06-418,413

Finding the Fourth Proportional to 1,217,138.28, 1,825,749.06 and 418,413

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Solution

The fourth proportional to 1,217,138.28, 1,825,749.06 and 418,413 is: 627,633.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,138.28 : 1,825,749.06 = 418,413 : x
  2. Step 2: Convert to fraction form
    1,217,138.28/1,825,749.06 = 418,413/x
  3. Step 3: Cross multiply
    1,217,138.28x = 1,825,749.06 × 418,413
  4. Step 4: Simplify right side
    1,217,138.28x = 763,917,141,441.78
  5. Step 5: Solve for x
    x = 763,917,141,441.78/1,217,138.28
  6. Step 6: Final answer
    x = 627,633.81

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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.