Home / 1,425,388.98-2,138,477.13-1,268,712.30

Finding the Fourth Proportional to 1,425,388.98, 2,138,477.13 and 1,268,712.30

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Solution

The fourth proportional to 1,425,388.98, 2,138,477.13 and 1,268,712.30 is: 1,903,418.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,388.98 : 2,138,477.13 = 1,268,712.30 : x
  2. Step 2: Convert to fraction form
    1,425,388.98/2,138,477.13 = 1,268,712.30/x
  3. Step 3: Cross multiply
    1,425,388.98x = 2,138,477.13 × 1,268,712.30
  4. Step 4: Simplify right side
    1,425,388.98x = 2,713,112,238,099.70
  5. Step 5: Solve for x
    x = 2,713,112,238,099.70/1,425,388.98
  6. Step 6: Final answer
    x = 1,903,418.84

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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.