Home / 445,079.02-664,380.92-412,186.54

Finding the Fourth Proportional to 445,079.02, 664,380.92 and 412,186.54

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Solution

The fourth proportional to 445,079.02, 664,380.92 and 412,186.54 is: 615,281.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,079.02 : 664,380.92 = 412,186.54 : x
  2. Step 2: Convert to fraction form
    445,079.02/664,380.92 = 412,186.54/x
  3. Step 3: Cross multiply
    445,079.02x = 664,380.92 × 412,186.54
  4. Step 4: Simplify right side
    445,079.02x = 273,848,872,656.82
  5. Step 5: Solve for x
    x = 273,848,872,656.82/445,079.02
  6. Step 6: Final answer
    x = 615,281.47

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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.