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Finding the Fourth Proportional to 615,474, 849,383.46 and 347,202

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Solution

The fourth proportional to 615,474, 849,383.46 and 347,202 is: 479,155.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,474 : 849,383.46 = 347,202 : x
  2. Step 2: Convert to fraction form
    615,474/849,383.46 = 347,202/x
  3. Step 3: Cross multiply
    615,474x = 849,383.46 × 347,202
  4. Step 4: Simplify right side
    615,474x = 294,907,636,078.92
  5. Step 5: Solve for x
    x = 294,907,636,078.92/615,474
  6. Step 6: Final answer
    x = 479,155.31

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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.