Home / 2,928,279.40-4,392,014.10-907,912.60

Finding the Fourth Proportional to 2,928,279.40, 4,392,014.10 and 907,912.60

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Solution

The fourth proportional to 2,928,279.40, 4,392,014.10 and 907,912.60 is: 1,361,743.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928,279.40 : 4,392,014.10 = 907,912.60 : x
  2. Step 2: Convert to fraction form
    2,928,279.40/4,392,014.10 = 907,912.60/x
  3. Step 3: Cross multiply
    2,928,279.40x = 4,392,014.10 × 907,912.60
  4. Step 4: Simplify right side
    2,928,279.40x = 3,987,564,940,767.66
  5. Step 5: Solve for x
    x = 3,987,564,940,767.66/2,928,279.40
  6. Step 6: Final answer
    x = 1,361,743.33

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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.