Home / 843,942.42-1,265,505.39-311,714.10

Finding the Fourth Proportional to 843,942.42, 1,265,505.39 and 311,714.10

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Solution

The fourth proportional to 843,942.42, 1,265,505.39 and 311,714.10 is: 467,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,942.42 : 1,265,505.39 = 311,714.10 : x
  2. Step 2: Convert to fraction form
    843,942.42/1,265,505.39 = 311,714.10/x
  3. Step 3: Cross multiply
    843,942.42x = 1,265,505.39 × 311,714.10
  4. Step 4: Simplify right side
    843,942.42x = 394,475,873,689.00
  5. Step 5: Solve for x
    x = 394,475,873,689.00/843,942.42
  6. Step 6: Final answer
    x = 467,420.36

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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.