Home / 2,115,529.89-2,919,689.45-1,244,323.05

Finding the Fourth Proportional to 2,115,529.89, 2,919,689.45 and 1,244,323.05

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Solution

The fourth proportional to 2,115,529.89, 2,919,689.45 and 1,244,323.05 is: 1,717,317.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,529.89 : 2,919,689.45 = 1,244,323.05 : x
  2. Step 2: Convert to fraction form
    2,115,529.89/2,919,689.45 = 1,244,323.05/x
  3. Step 3: Cross multiply
    2,115,529.89x = 2,919,689.45 × 1,244,323.05
  4. Step 4: Simplify right side
    2,115,529.89x = 3,633,036,868,972.58
  5. Step 5: Solve for x
    x = 3,633,036,868,972.58/2,115,529.89
  6. Step 6: Final answer
    x = 1,717,317.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.