Home / 656,921.70-985,076.28-341,293.86

Finding the Fourth Proportional to 656,921.70, 985,076.28 and 341,293.86

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Solution

The fourth proportional to 656,921.70, 985,076.28 and 341,293.86 is: 511,781.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,921.70 : 985,076.28 = 341,293.86 : x
  2. Step 2: Convert to fraction form
    656,921.70/985,076.28 = 341,293.86/x
  3. Step 3: Cross multiply
    656,921.70x = 985,076.28 × 341,293.86
  4. Step 4: Simplify right side
    656,921.70x = 336,200,485,995.64
  5. Step 5: Solve for x
    x = 336,200,485,995.64/656,921.70
  6. Step 6: Final answer
    x = 511,781.67

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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.