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Finding the Fourth Proportional to 392,080.60, 588,558.30 and 366,383.35

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Solution

The fourth proportional to 392,080.60, 588,558.30 and 366,383.35 is: 549,983.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,080.60 : 588,558.30 = 366,383.35 : x
  2. Step 2: Convert to fraction form
    392,080.60/588,558.30 = 366,383.35/x
  3. Step 3: Cross multiply
    392,080.60x = 588,558.30 × 366,383.35
  4. Step 4: Simplify right side
    392,080.60x = 215,637,961,624.31
  5. Step 5: Solve for x
    x = 215,637,961,624.31/392,080.60
  6. Step 6: Final answer
    x = 549,983.76

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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.