Home / 400,984.28-601,610.68-131,124.86

Finding the Fourth Proportional to 400,984.28, 601,610.68 and 131,124.86

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Solution

The fourth proportional to 400,984.28, 601,610.68 and 131,124.86 is: 196,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,984.28 : 601,610.68 = 131,124.86 : x
  2. Step 2: Convert to fraction form
    400,984.28/601,610.68 = 131,124.86/x
  3. Step 3: Cross multiply
    400,984.28x = 601,610.68 × 131,124.86
  4. Step 4: Simplify right side
    400,984.28x = 78,886,116,189.50
  5. Step 5: Solve for x
    x = 78,886,116,189.50/400,984.28
  6. Step 6: Final answer
    x = 196,731.19

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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.