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Finding the Fourth Proportional to 615,879.60, 923,871.78 and 216,485.88

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Solution

The fourth proportional to 615,879.60, 923,871.78 and 216,485.88 is: 324,747.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,879.60 : 923,871.78 = 216,485.88 : x
  2. Step 2: Convert to fraction form
    615,879.60/923,871.78 = 216,485.88/x
  3. Step 3: Cross multiply
    615,879.60x = 923,871.78 × 216,485.88
  4. Step 4: Simplify right side
    615,879.60x = 200,005,195,300.47
  5. Step 5: Solve for x
    x = 200,005,195,300.47/615,879.60
  6. Step 6: Final answer
    x = 324,747.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.