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Finding the Fourth Proportional to 647,181.06, 970,800.72 and 247,718.22

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Solution

The fourth proportional to 647,181.06, 970,800.72 and 247,718.22 is: 371,588.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,181.06 : 970,800.72 = 247,718.22 : x
  2. Step 2: Convert to fraction form
    647,181.06/970,800.72 = 247,718.22/x
  3. Step 3: Cross multiply
    647,181.06x = 970,800.72 × 247,718.22
  4. Step 4: Simplify right side
    647,181.06x = 240,485,026,333.12
  5. Step 5: Solve for x
    x = 240,485,026,333.12/647,181.06
  6. Step 6: Final answer
    x = 371,588.48

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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.