Home / 805,940.46-1,112,162.70-443,341.32

Finding the Fourth Proportional to 805,940.46, 1,112,162.70 and 443,341.32

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Solution

The fourth proportional to 805,940.46, 1,112,162.70 and 443,341.32 is: 611,791.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,940.46 : 1,112,162.70 = 443,341.32 : x
  2. Step 2: Convert to fraction form
    805,940.46/1,112,162.70 = 443,341.32/x
  3. Step 3: Cross multiply
    805,940.46x = 1,112,162.70 × 443,341.32
  4. Step 4: Simplify right side
    805,940.46x = 493,067,679,472.76
  5. Step 5: Solve for x
    x = 493,067,679,472.76/805,940.46
  6. Step 6: Final answer
    x = 611,791.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.