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Finding the Fourth Proportional to 482,220.81, 665,636.94 and 329,149.44

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Solution

The fourth proportional to 482,220.81, 665,636.94 and 329,149.44 is: 454,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,220.81 : 665,636.94 = 329,149.44 : x
  2. Step 2: Convert to fraction form
    482,220.81/665,636.94 = 329,149.44/x
  3. Step 3: Cross multiply
    482,220.81x = 665,636.94 × 329,149.44
  4. Step 4: Simplify right side
    482,220.81x = 219,094,026,044.31
  5. Step 5: Solve for x
    x = 219,094,026,044.31/482,220.81
  6. Step 6: Final answer
    x = 454,343.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.