Home / 1,219,760.86-1,829,502.80-321,272.90

Finding the Fourth Proportional to 1,219,760.86, 1,829,502.80 and 321,272.90

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Solution

The fourth proportional to 1,219,760.86, 1,829,502.80 and 321,272.90 is: 481,872.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,760.86 : 1,829,502.80 = 321,272.90 : x
  2. Step 2: Convert to fraction form
    1,219,760.86/1,829,502.80 = 321,272.90/x
  3. Step 3: Cross multiply
    1,219,760.86x = 1,829,502.80 × 321,272.90
  4. Step 4: Simplify right side
    1,219,760.86x = 587,769,670,114.12
  5. Step 5: Solve for x
    x = 587,769,670,114.12/1,219,760.86
  6. Step 6: Final answer
    x = 481,872.87

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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.