Home / 1,917,319.20-2,646,859.28-1,192,400.43

Finding the Fourth Proportional to 1,917,319.20, 2,646,859.28 and 1,192,400.43

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Solution

The fourth proportional to 1,917,319.20, 2,646,859.28 and 1,192,400.43 is: 1,646,108.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,319.20 : 2,646,859.28 = 1,192,400.43 : x
  2. Step 2: Convert to fraction form
    1,917,319.20/2,646,859.28 = 1,192,400.43/x
  3. Step 3: Cross multiply
    1,917,319.20x = 2,646,859.28 × 1,192,400.43
  4. Step 4: Simplify right side
    1,917,319.20x = 3,156,116,137,659.49
  5. Step 5: Solve for x
    x = 3,156,116,137,659.49/1,917,319.20
  6. Step 6: Final answer
    x = 1,646,108.87

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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.