Home / 1,373,778.86-1,895,928.07-762,128.49

Finding the Fourth Proportional to 1,373,778.86, 1,895,928.07 and 762,128.49

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Solution

The fourth proportional to 1,373,778.86, 1,895,928.07 and 762,128.49 is: 1,051,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,778.86 : 1,895,928.07 = 762,128.49 : x
  2. Step 2: Convert to fraction form
    1,373,778.86/1,895,928.07 = 762,128.49/x
  3. Step 3: Cross multiply
    1,373,778.86x = 1,895,928.07 × 762,128.49
  4. Step 4: Simplify right side
    1,373,778.86x = 1,444,940,803,771.11
  5. Step 5: Solve for x
    x = 1,444,940,803,771.11/1,373,778.86
  6. Step 6: Final answer
    x = 1,051,800.15

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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.