Home / 1,556,764.57-2,148,286.36-912,613.78

Finding the Fourth Proportional to 1,556,764.57, 2,148,286.36 and 912,613.78

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Solution

The fourth proportional to 1,556,764.57, 2,148,286.36 and 912,613.78 is: 1,259,378.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,764.57 : 2,148,286.36 = 912,613.78 : x
  2. Step 2: Convert to fraction form
    1,556,764.57/2,148,286.36 = 912,613.78/x
  3. Step 3: Cross multiply
    1,556,764.57x = 2,148,286.36 × 912,613.78
  4. Step 4: Simplify right side
    1,556,764.57x = 1,960,555,720,217.54
  5. Step 5: Solve for x
    x = 1,960,555,720,217.54/1,556,764.57
  6. Step 6: Final answer
    x = 1,259,378.43

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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.