Home / 861,028.86-1,188,276.62-479,056.44

Finding the Fourth Proportional to 861,028.86, 1,188,276.62 and 479,056.44

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Solution

The fourth proportional to 861,028.86, 1,188,276.62 and 479,056.44 is: 661,129.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,028.86 : 1,188,276.62 = 479,056.44 : x
  2. Step 2: Convert to fraction form
    861,028.86/1,188,276.62 = 479,056.44/x
  3. Step 3: Cross multiply
    861,028.86x = 1,188,276.62 × 479,056.44
  4. Step 4: Simplify right side
    861,028.86x = 569,251,564,917.15
  5. Step 5: Solve for x
    x = 569,251,564,917.15/861,028.86
  6. Step 6: Final answer
    x = 661,129.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.