Home / 2,819,105.20-4,228,657.80-925,908.40

Finding the Fourth Proportional to 2,819,105.20, 4,228,657.80 and 925,908.40

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Solution

The fourth proportional to 2,819,105.20, 4,228,657.80 and 925,908.40 is: 1,388,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819,105.20 : 4,228,657.80 = 925,908.40 : x
  2. Step 2: Convert to fraction form
    2,819,105.20/4,228,657.80 = 925,908.40/x
  3. Step 3: Cross multiply
    2,819,105.20x = 4,228,657.80 × 925,908.40
  4. Step 4: Simplify right side
    2,819,105.20x = 3,915,349,777,745.52
  5. Step 5: Solve for x
    x = 3,915,349,777,745.52/2,819,105.20
  6. Step 6: Final answer
    x = 1,388,862.60

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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.