Home / 1,415,358.80-1,953,207.78-770,781.86

Finding the Fourth Proportional to 1,415,358.80, 1,953,207.78 and 770,781.86

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Solution

The fourth proportional to 1,415,358.80, 1,953,207.78 and 770,781.86 is: 1,063,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,358.80 : 1,953,207.78 = 770,781.86 : x
  2. Step 2: Convert to fraction form
    1,415,358.80/1,953,207.78 = 770,781.86/x
  3. Step 3: Cross multiply
    1,415,358.80x = 1,953,207.78 × 770,781.86
  4. Step 4: Simplify right side
    1,415,358.80x = 1,505,497,125,634.87
  5. Step 5: Solve for x
    x = 1,505,497,125,634.87/1,415,358.80
  6. Step 6: Final answer
    x = 1,063,685.85

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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.