Home / 684,837.20-1,027,255.80-667,341.20

Finding the Fourth Proportional to 684,837.20, 1,027,255.80 and 667,341.20

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Solution

The fourth proportional to 684,837.20, 1,027,255.80 and 667,341.20 is: 1,001,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,837.20 : 1,027,255.80 = 667,341.20 : x
  2. Step 2: Convert to fraction form
    684,837.20/1,027,255.80 = 667,341.20/x
  3. Step 3: Cross multiply
    684,837.20x = 1,027,255.80 × 667,341.20
  4. Step 4: Simplify right side
    684,837.20x = 685,530,118,278.96
  5. Step 5: Solve for x
    x = 685,530,118,278.96/684,837.20
  6. Step 6: Final answer
    x = 1,001,011.80

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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.