Home / 892,633.56-1,231,855.74-490,234.20

Finding the Fourth Proportional to 892,633.56, 1,231,855.74 and 490,234.20

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Solution

The fourth proportional to 892,633.56, 1,231,855.74 and 490,234.20 is: 676,534.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,633.56 : 1,231,855.74 = 490,234.20 : x
  2. Step 2: Convert to fraction form
    892,633.56/1,231,855.74 = 490,234.20/x
  3. Step 3: Cross multiply
    892,633.56x = 1,231,855.74 × 490,234.20
  4. Step 4: Simplify right side
    892,633.56x = 603,897,813,214.31
  5. Step 5: Solve for x
    x = 603,897,813,214.31/892,633.56
  6. Step 6: Final answer
    x = 676,534.96

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Double scale
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Similar ratio
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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.