Home / 2,119,872.72-3,179,911.14-699,897.36

Finding the Fourth Proportional to 2,119,872.72, 3,179,911.14 and 699,897.36

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Solution

The fourth proportional to 2,119,872.72, 3,179,911.14 and 699,897.36 is: 1,049,879.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,872.72 : 3,179,911.14 = 699,897.36 : x
  2. Step 2: Convert to fraction form
    2,119,872.72/3,179,911.14 = 699,897.36/x
  3. Step 3: Cross multiply
    2,119,872.72x = 3,179,911.14 × 699,897.36
  4. Step 4: Simplify right side
    2,119,872.72x = 2,225,611,411,920.59
  5. Step 5: Solve for x
    x = 2,225,611,411,920.59/2,119,872.72
  6. Step 6: Final answer
    x = 1,049,879.74

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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.