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Finding the Fourth Proportional to 647,889.54, 972,114.97 and 348,020.22

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Solution

The fourth proportional to 647,889.54, 972,114.97 and 348,020.22 is: 522,181.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,889.54 : 972,114.97 = 348,020.22 : x
  2. Step 2: Convert to fraction form
    647,889.54/972,114.97 = 348,020.22/x
  3. Step 3: Cross multiply
    647,889.54x = 972,114.97 × 348,020.22
  4. Step 4: Simplify right side
    647,889.54x = 338,315,665,724.69
  5. Step 5: Solve for x
    x = 338,315,665,724.69/647,889.54
  6. Step 6: Final answer
    x = 522,181.09

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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.