Home / 1,231,311.30-1,843,856.55-808,296.90

Finding the Fourth Proportional to 1,231,311.30, 1,843,856.55 and 808,296.90

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Solution

The fourth proportional to 1,231,311.30, 1,843,856.55 and 808,296.90 is: 1,210,403.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,311.30 : 1,843,856.55 = 808,296.90 : x
  2. Step 2: Convert to fraction form
    1,231,311.30/1,843,856.55 = 808,296.90/x
  3. Step 3: Cross multiply
    1,231,311.30x = 1,843,856.55 × 808,296.90
  4. Step 4: Simplify right side
    1,231,311.30x = 1,490,383,533,409.70
  5. Step 5: Solve for x
    x = 1,490,383,533,409.70/1,231,311.30
  6. Step 6: Final answer
    x = 1,210,403.52

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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.