Home / 1,217,137.28-1,825,747.56-418,412

Finding the Fourth Proportional to 1,217,137.28, 1,825,747.56 and 418,412

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Solution

The fourth proportional to 1,217,137.28, 1,825,747.56 and 418,412 is: 627,632.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,137.28 : 1,825,747.56 = 418,412 : x
  2. Step 2: Convert to fraction form
    1,217,137.28/1,825,747.56 = 418,412/x
  3. Step 3: Cross multiply
    1,217,137.28x = 1,825,747.56 × 418,412
  4. Step 4: Simplify right side
    1,217,137.28x = 763,914,688,074.72
  5. Step 5: Solve for x
    x = 763,914,688,074.72/1,217,137.28
  6. Step 6: Final answer
    x = 627,632.31

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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.