Home / 1,216,928.40-1,825,219.80-418,246.80

Finding the Fourth Proportional to 1,216,928.40, 1,825,219.80 and 418,246.80

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Solution

The fourth proportional to 1,216,928.40, 1,825,219.80 and 418,246.80 is: 627,310.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,928.40 : 1,825,219.80 = 418,246.80 : x
  2. Step 2: Convert to fraction form
    1,216,928.40/1,825,219.80 = 418,246.80/x
  3. Step 3: Cross multiply
    1,216,928.40x = 1,825,219.80 × 418,246.80
  4. Step 4: Simplify right side
    1,216,928.40x = 763,392,340,646.64
  5. Step 5: Solve for x
    x = 763,392,340,646.64/1,216,928.40
  6. Step 6: Final answer
    x = 627,310.81

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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.