Home / 1,950,499.86-2,690,512.82-1,288,215.78

Finding the Fourth Proportional to 1,950,499.86, 2,690,512.82 and 1,288,215.78

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Solution

The fourth proportional to 1,950,499.86, 2,690,512.82 and 1,288,215.78 is: 1,776,960.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950,499.86 : 2,690,512.82 = 1,288,215.78 : x
  2. Step 2: Convert to fraction form
    1,950,499.86/2,690,512.82 = 1,288,215.78/x
  3. Step 3: Cross multiply
    1,950,499.86x = 2,690,512.82 × 1,288,215.78
  4. Step 4: Simplify right side
    1,950,499.86x = 3,465,961,071,016.30
  5. Step 5: Solve for x
    x = 3,465,961,071,016.30/1,950,499.86
  6. Step 6: Final answer
    x = 1,776,960.43

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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.