Home / 812,015.06-1,218,104.43-279,466.10

Finding the Fourth Proportional to 812,015.06, 1,218,104.43 and 279,466.10

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Solution

The fourth proportional to 812,015.06, 1,218,104.43 and 279,466.10 is: 419,227.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,015.06 : 1,218,104.43 = 279,466.10 : x
  2. Step 2: Convert to fraction form
    812,015.06/1,218,104.43 = 279,466.10/x
  3. Step 3: Cross multiply
    812,015.06x = 1,218,104.43 × 279,466.10
  4. Step 4: Simplify right side
    812,015.06x = 340,418,894,444.82
  5. Step 5: Solve for x
    x = 340,418,894,444.82/812,015.06
  6. Step 6: Final answer
    x = 419,227.32

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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.