Home / 684,753.02-1,027,487.69-280,245.50

Finding the Fourth Proportional to 684,753.02, 1,027,487.69 and 280,245.50

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Solution

The fourth proportional to 684,753.02, 1,027,487.69 and 280,245.50 is: 420,514.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,753.02 : 1,027,487.69 = 280,245.50 : x
  2. Step 2: Convert to fraction form
    684,753.02/1,027,487.69 = 280,245.50/x
  3. Step 3: Cross multiply
    684,753.02x = 1,027,487.69 × 280,245.50
  4. Step 4: Simplify right side
    684,753.02x = 287,948,801,427.90
  5. Step 5: Solve for x
    x = 287,948,801,427.90/684,753.02
  6. Step 6: Final answer
    x = 420,514.83

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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.