Home / 2,781,806.40-4,172,709.60-2,507,228.55

Finding the Fourth Proportional to 2,781,806.40, 4,172,709.60 and 2,507,228.55

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Solution

The fourth proportional to 2,781,806.40, 4,172,709.60 and 2,507,228.55 is: 3,760,842.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,806.40 : 4,172,709.60 = 2,507,228.55 : x
  2. Step 2: Convert to fraction form
    2,781,806.40/4,172,709.60 = 2,507,228.55/x
  3. Step 3: Cross multiply
    2,781,806.40x = 4,172,709.60 × 2,507,228.55
  4. Step 4: Simplify right side
    2,781,806.40x = 10,461,936,639,979.08
  5. Step 5: Solve for x
    x = 10,461,936,639,979.08/2,781,806.40
  6. Step 6: Final answer
    x = 3,760,842.83

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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.