Home / 2,643,641.80-3,965,462.70-1,381,856.20

Finding the Fourth Proportional to 2,643,641.80, 3,965,462.70 and 1,381,856.20

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Solution

The fourth proportional to 2,643,641.80, 3,965,462.70 and 1,381,856.20 is: 2,072,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643,641.80 : 3,965,462.70 = 1,381,856.20 : x
  2. Step 2: Convert to fraction form
    2,643,641.80/3,965,462.70 = 1,381,856.20/x
  3. Step 3: Cross multiply
    2,643,641.80x = 3,965,462.70 × 1,381,856.20
  4. Step 4: Simplify right side
    2,643,641.80x = 5,479,699,217,863.74
  5. Step 5: Solve for x
    x = 5,479,699,217,863.74/2,643,641.80
  6. Step 6: Final answer
    x = 2,072,784.30

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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.