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Finding the Fourth Proportional to 647,163.72, 970,833.06 and 607,797.72

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Solution

The fourth proportional to 647,163.72, 970,833.06 and 607,797.72 is: 911,778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,163.72 : 970,833.06 = 607,797.72 : x
  2. Step 2: Convert to fraction form
    647,163.72/970,833.06 = 607,797.72/x
  3. Step 3: Cross multiply
    647,163.72x = 970,833.06 × 607,797.72
  4. Step 4: Simplify right side
    647,163.72x = 590,070,120,368.62
  5. Step 5: Solve for x
    x = 590,070,120,368.62/647,163.72
  6. Step 6: Final answer
    x = 911,778.74

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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.