Home / 812,826.41-1,219,410.82-307,376.20

Finding the Fourth Proportional to 812,826.41, 1,219,410.82 and 307,376.20

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Solution

The fourth proportional to 812,826.41, 1,219,410.82 and 307,376.20 is: 461,129.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,826.41 : 1,219,410.82 = 307,376.20 : x
  2. Step 2: Convert to fraction form
    812,826.41/1,219,410.82 = 307,376.20/x
  3. Step 3: Cross multiply
    812,826.41x = 1,219,410.82 × 307,376.20
  4. Step 4: Simplify right side
    812,826.41x = 374,817,857,993.43
  5. Step 5: Solve for x
    x = 374,817,857,993.43/812,826.41
  6. Step 6: Final answer
    x = 461,129.03

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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.