Home / 1,631,251.80-2,442,039.30-1,212,384.60

Finding the Fourth Proportional to 1,631,251.80, 2,442,039.30 and 1,212,384.60

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Solution

The fourth proportional to 1,631,251.80, 2,442,039.30 and 1,212,384.60 is: 1,814,980.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631,251.80 : 2,442,039.30 = 1,212,384.60 : x
  2. Step 2: Convert to fraction form
    1,631,251.80/2,442,039.30 = 1,212,384.60/x
  3. Step 3: Cross multiply
    1,631,251.80x = 2,442,039.30 × 1,212,384.60
  4. Step 4: Simplify right side
    1,631,251.80x = 2,960,690,839,914.78
  5. Step 5: Solve for x
    x = 2,960,690,839,914.78/1,631,251.80
  6. Step 6: Final answer
    x = 1,814,980.89

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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.