Home / 445,078.52-664,380.18-412,186.04

Finding the Fourth Proportional to 445,078.52, 664,380.18 and 412,186.04

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Solution

The fourth proportional to 445,078.52, 664,380.18 and 412,186.04 is: 615,280.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,078.52 : 664,380.18 = 412,186.04 : x
  2. Step 2: Convert to fraction form
    445,078.52/664,380.18 = 412,186.04/x
  3. Step 3: Cross multiply
    445,078.52x = 664,380.18 × 412,186.04
  4. Step 4: Simplify right side
    445,078.52x = 273,848,233,387.76
  5. Step 5: Solve for x
    x = 273,848,233,387.76/445,078.52
  6. Step 6: Final answer
    x = 615,280.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.