Home / 1,815,620.14-2,715,844.83-1,275,838.30

Finding the Fourth Proportional to 1,815,620.14, 2,715,844.83 and 1,275,838.30

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Solution

The fourth proportional to 1,815,620.14, 2,715,844.83 and 1,275,838.30 is: 1,908,427.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,620.14 : 2,715,844.83 = 1,275,838.30 : x
  2. Step 2: Convert to fraction form
    1,815,620.14/2,715,844.83 = 1,275,838.30/x
  3. Step 3: Cross multiply
    1,815,620.14x = 2,715,844.83 × 1,275,838.30
  4. Step 4: Simplify right side
    1,815,620.14x = 3,464,978,850,970.99
  5. Step 5: Solve for x
    x = 3,464,978,850,970.99/1,815,620.14
  6. Step 6: Final answer
    x = 1,908,427.20

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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.