Home / 1,555,200.93-2,145,917.57-866,722.53

Finding the Fourth Proportional to 1,555,200.93, 2,145,917.57 and 866,722.53

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Solution

The fourth proportional to 1,555,200.93, 2,145,917.57 and 866,722.53 is: 1,195,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,200.93 : 2,145,917.57 = 866,722.53 : x
  2. Step 2: Convert to fraction form
    1,555,200.93/2,145,917.57 = 866,722.53/x
  3. Step 3: Cross multiply
    1,555,200.93x = 2,145,917.57 × 866,722.53
  4. Step 4: Simplify right side
    1,555,200.93x = 1,859,915,101,108.24
  5. Step 5: Solve for x
    x = 1,859,915,101,108.24/1,555,200.93
  6. Step 6: Final answer
    x = 1,195,932.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.