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Finding the Fourth Proportional to 615,843.60, 849,847.56 and 343,903.92

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Solution

The fourth proportional to 615,843.60, 849,847.56 and 343,903.92 is: 474,578.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,843.60 : 849,847.56 = 343,903.92 : x
  2. Step 2: Convert to fraction form
    615,843.60/849,847.56 = 343,903.92/x
  3. Step 3: Cross multiply
    615,843.60x = 849,847.56 × 343,903.92
  4. Step 4: Simplify right side
    615,843.60x = 292,265,907,286.44
  5. Step 5: Solve for x
    x = 292,265,907,286.44/615,843.60
  6. Step 6: Final answer
    x = 474,578.14

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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.