Home / 1,808,209.60-2,715,424.80-1,279,441.60

Finding the Fourth Proportional to 1,808,209.60, 2,715,424.80 and 1,279,441.60

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Solution

The fourth proportional to 1,808,209.60, 2,715,424.80 and 1,279,441.60 is: 1,921,363.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808,209.60 : 2,715,424.80 = 1,279,441.60 : x
  2. Step 2: Convert to fraction form
    1,808,209.60/2,715,424.80 = 1,279,441.60/x
  3. Step 3: Cross multiply
    1,808,209.60x = 2,715,424.80 × 1,279,441.60
  4. Step 4: Simplify right side
    1,808,209.60x = 3,474,227,450,791.68
  5. Step 5: Solve for x
    x = 3,474,227,450,791.68/1,808,209.60
  6. Step 6: Final answer
    x = 1,921,363.24

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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.