Home / 1,847,007.40-2,772,584.70-1,428,140.20

Finding the Fourth Proportional to 1,847,007.40, 2,772,584.70 and 1,428,140.20

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Solution

The fourth proportional to 1,847,007.40, 2,772,584.70 and 1,428,140.20 is: 2,143,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,847,007.40 : 2,772,584.70 = 1,428,140.20 : x
  2. Step 2: Convert to fraction form
    1,847,007.40/2,772,584.70 = 1,428,140.20/x
  3. Step 3: Cross multiply
    1,847,007.40x = 2,772,584.70 × 1,428,140.20
  4. Step 4: Simplify right side
    1,847,007.40x = 3,959,639,667,974.94
  5. Step 5: Solve for x
    x = 3,959,639,667,974.94/1,847,007.40
  6. Step 6: Final answer
    x = 2,143,813.65

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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.