Home / 1,217,653.20-1,826,998.20-768,718.80

Finding the Fourth Proportional to 1,217,653.20, 1,826,998.20 and 768,718.80

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Solution

The fourth proportional to 1,217,653.20, 1,826,998.20 and 768,718.80 is: 1,153,405.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,653.20 : 1,826,998.20 = 768,718.80 : x
  2. Step 2: Convert to fraction form
    1,217,653.20/1,826,998.20 = 768,718.80/x
  3. Step 3: Cross multiply
    1,217,653.20x = 1,826,998.20 × 768,718.80
  4. Step 4: Simplify right side
    1,217,653.20x = 1,404,447,863,906.16
  5. Step 5: Solve for x
    x = 1,404,447,863,906.16/1,217,653.20
  6. Step 6: Final answer
    x = 1,153,405.47

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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.