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Finding the Fourth Proportional to 615,831, 849,797.79 and 343,882.67

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Solution

The fourth proportional to 615,831, 849,797.79 and 343,882.67 is: 474,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,831 : 849,797.79 = 343,882.67 : x
  2. Step 2: Convert to fraction form
    615,831/849,797.79 = 343,882.67/x
  3. Step 3: Cross multiply
    615,831x = 849,797.79 × 343,882.67
  4. Step 4: Simplify right side
    615,831x = 292,230,728,736.31
  5. Step 5: Solve for x
    x = 292,230,728,736.31/615,831
  6. Step 6: Final answer
    x = 474,530.72

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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.