Home / 1,211,778.92-1,817,471.45-572,081.42

Finding the Fourth Proportional to 1,211,778.92, 1,817,471.45 and 572,081.42

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Solution

The fourth proportional to 1,211,778.92, 1,817,471.45 and 572,081.42 is: 858,029.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,778.92 : 1,817,471.45 = 572,081.42 : x
  2. Step 2: Convert to fraction form
    1,211,778.92/1,817,471.45 = 572,081.42/x
  3. Step 3: Cross multiply
    1,211,778.92x = 1,817,471.45 × 572,081.42
  4. Step 4: Simplify right side
    1,211,778.92x = 1,039,741,635,977.69
  5. Step 5: Solve for x
    x = 1,039,741,635,977.69/1,211,778.92
  6. Step 6: Final answer
    x = 858,029.15

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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.