Home / 1,238,816.80-1,856,970.20-839,497.96

Finding the Fourth Proportional to 1,238,816.80, 1,856,970.20 and 839,497.96

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Solution

The fourth proportional to 1,238,816.80, 1,856,970.20 and 839,497.96 is: 1,258,396.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,816.80 : 1,856,970.20 = 839,497.96 : x
  2. Step 2: Convert to fraction form
    1,238,816.80/1,856,970.20 = 839,497.96/x
  3. Step 3: Cross multiply
    1,238,816.80x = 1,856,970.20 × 839,497.96
  4. Step 4: Simplify right side
    1,238,816.80x = 1,558,922,694,680.79
  5. Step 5: Solve for x
    x = 1,558,922,694,680.79/1,238,816.80
  6. Step 6: Final answer
    x = 1,258,396.48

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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.