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Finding the Fourth Proportional to 647,080.09, 970,622.52 and 197,799.22

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Solution

The fourth proportional to 647,080.09, 970,622.52 and 197,799.22 is: 296,699.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,080.09 : 970,622.52 = 197,799.22 : x
  2. Step 2: Convert to fraction form
    647,080.09/970,622.52 = 197,799.22/x
  3. Step 3: Cross multiply
    647,080.09x = 970,622.52 × 197,799.22
  4. Step 4: Simplify right side
    647,080.09x = 191,988,377,370.43
  5. Step 5: Solve for x
    x = 191,988,377,370.43/647,080.09
  6. Step 6: Final answer
    x = 296,699.56

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1.5x scale

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.