Home / 811,234.94-1,215,994.30-305,577.11

Finding the Fourth Proportional to 811,234.94, 1,215,994.30 and 305,577.11

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Solution

The fourth proportional to 811,234.94, 1,215,994.30 and 305,577.11 is: 458,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,234.94 : 1,215,994.30 = 305,577.11 : x
  2. Step 2: Convert to fraction form
    811,234.94/1,215,994.30 = 305,577.11/x
  3. Step 3: Cross multiply
    811,234.94x = 1,215,994.30 × 305,577.11
  4. Step 4: Simplify right side
    811,234.94x = 371,580,026,246.52
  5. Step 5: Solve for x
    x = 371,580,026,246.52/811,234.94
  6. Step 6: Final answer
    x = 458,042.44

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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.