Home / 685,130.94-1,027,229.30-347,520.58

Finding the Fourth Proportional to 685,130.94, 1,027,229.30 and 347,520.58

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Solution

The fourth proportional to 685,130.94, 1,027,229.30 and 347,520.58 is: 521,043.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,130.94 : 1,027,229.30 = 347,520.58 : x
  2. Step 2: Convert to fraction form
    685,130.94/1,027,229.30 = 347,520.58/x
  3. Step 3: Cross multiply
    685,130.94x = 1,027,229.30 × 347,520.58
  4. Step 4: Simplify right side
    685,130.94x = 356,983,322,997.80
  5. Step 5: Solve for x
    x = 356,983,322,997.80/685,130.94
  6. Step 6: Final answer
    x = 521,043.94

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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.