Home / 1,217,139.28-1,825,750.56-418,414

Finding the Fourth Proportional to 1,217,139.28, 1,825,750.56 and 418,414

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Solution

The fourth proportional to 1,217,139.28, 1,825,750.56 and 418,414 is: 627,635.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,139.28 : 1,825,750.56 = 418,414 : x
  2. Step 2: Convert to fraction form
    1,217,139.28/1,825,750.56 = 418,414/x
  3. Step 3: Cross multiply
    1,217,139.28x = 1,825,750.56 × 418,414
  4. Step 4: Simplify right side
    1,217,139.28x = 763,919,594,811.84
  5. Step 5: Solve for x
    x = 763,919,594,811.84/1,217,139.28
  6. Step 6: Final answer
    x = 627,635.31

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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.