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Finding the Fourth Proportional to 547,639.26, 755,426.79 and 329,696.34

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Solution

The fourth proportional to 547,639.26, 755,426.79 and 329,696.34 is: 454,791.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,639.26 : 755,426.79 = 329,696.34 : x
  2. Step 2: Convert to fraction form
    547,639.26/755,426.79 = 329,696.34/x
  3. Step 3: Cross multiply
    547,639.26x = 755,426.79 × 329,696.34
  4. Step 4: Simplify right side
    547,639.26x = 249,061,447,800.95
  5. Step 5: Solve for x
    x = 249,061,447,800.95/547,639.26
  6. Step 6: Final answer
    x = 454,791.08

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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.