Home / 2,119,778.91-3,179,670.53-857,617.47

Finding the Fourth Proportional to 2,119,778.91, 3,179,670.53 and 857,617.47

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Solution

The fourth proportional to 2,119,778.91, 3,179,670.53 and 857,617.47 is: 1,286,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,778.91 : 3,179,670.53 = 857,617.47 : x
  2. Step 2: Convert to fraction form
    2,119,778.91/3,179,670.53 = 857,617.47/x
  3. Step 3: Cross multiply
    2,119,778.91x = 3,179,670.53 × 857,617.47
  4. Step 4: Simplify right side
    2,119,778.91x = 2,726,940,991,084.07
  5. Step 5: Solve for x
    x = 2,726,940,991,084.07/2,119,778.91
  6. Step 6: Final answer
    x = 1,286,427.08

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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.