Home / 1,398,544.38-1,930,878.42-957,756.78

Finding the Fourth Proportional to 1,398,544.38, 1,930,878.42 and 957,756.78

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Solution

The fourth proportional to 1,398,544.38, 1,930,878.42 and 957,756.78 is: 1,322,311.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,544.38 : 1,930,878.42 = 957,756.78 : x
  2. Step 2: Convert to fraction form
    1,398,544.38/1,930,878.42 = 957,756.78/x
  3. Step 3: Cross multiply
    1,398,544.38x = 1,930,878.42 × 957,756.78
  4. Step 4: Simplify right side
    1,398,544.38x = 1,849,311,898,110.69
  5. Step 5: Solve for x
    x = 1,849,311,898,110.69/1,398,544.38
  6. Step 6: Final answer
    x = 1,322,311.92

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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.