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Finding the Fourth Proportional to 617,439.08, 852,042.66 and 349,172.84

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Solution

The fourth proportional to 617,439.08, 852,042.66 and 349,172.84 is: 481,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,439.08 : 852,042.66 = 349,172.84 : x
  2. Step 2: Convert to fraction form
    617,439.08/852,042.66 = 349,172.84/x
  3. Step 3: Cross multiply
    617,439.08x = 852,042.66 × 349,172.84
  4. Step 4: Simplify right side
    617,439.08x = 297,510,155,393.35
  5. Step 5: Solve for x
    x = 297,510,155,393.35/617,439.08
  6. Step 6: Final answer
    x = 481,845.36

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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.