Home / 809,340.20-1,214,010.30-276,781.40

Finding the Fourth Proportional to 809,340.20, 1,214,010.30 and 276,781.40

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Solution

The fourth proportional to 809,340.20, 1,214,010.30 and 276,781.40 is: 415,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,340.20 : 1,214,010.30 = 276,781.40 : x
  2. Step 2: Convert to fraction form
    809,340.20/1,214,010.30 = 276,781.40/x
  3. Step 3: Cross multiply
    809,340.20x = 1,214,010.30 × 276,781.40
  4. Step 4: Simplify right side
    809,340.20x = 336,015,470,448.42
  5. Step 5: Solve for x
    x = 336,015,470,448.42/809,340.20
  6. Step 6: Final answer
    x = 415,172.10

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1.5x scale

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.