Home / 817,163.40-1,225,745.10-627,987.90

Finding the Fourth Proportional to 817,163.40, 1,225,745.10 and 627,987.90

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Solution

The fourth proportional to 817,163.40, 1,225,745.10 and 627,987.90 is: 941,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,163.40 : 1,225,745.10 = 627,987.90 : x
  2. Step 2: Convert to fraction form
    817,163.40/1,225,745.10 = 627,987.90/x
  3. Step 3: Cross multiply
    817,163.40x = 1,225,745.10 × 627,987.90
  4. Step 4: Simplify right side
    817,163.40x = 769,753,091,284.29
  5. Step 5: Solve for x
    x = 769,753,091,284.29/817,163.40
  6. Step 6: Final answer
    x = 941,981.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.