Home / 2,178,003.28-3,005,717.55-1,197,983.77

Finding the Fourth Proportional to 2,178,003.28, 3,005,717.55 and 1,197,983.77

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Solution

The fourth proportional to 2,178,003.28, 3,005,717.55 and 1,197,983.77 is: 1,653,257.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,003.28 : 3,005,717.55 = 1,197,983.77 : x
  2. Step 2: Convert to fraction form
    2,178,003.28/3,005,717.55 = 1,197,983.77/x
  3. Step 3: Cross multiply
    2,178,003.28x = 3,005,717.55 × 1,197,983.77
  4. Step 4: Simplify right side
    2,178,003.28x = 3,600,800,842,104.16
  5. Step 5: Solve for x
    x = 3,600,800,842,104.16/2,178,003.28
  6. Step 6: Final answer
    x = 1,653,257.77

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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.