Home / 843,900.49-1,265,714.29-311,672.17

Finding the Fourth Proportional to 843,900.49, 1,265,714.29 and 311,672.17

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Solution

The fourth proportional to 843,900.49, 1,265,714.29 and 311,672.17 is: 467,457.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,900.49 : 1,265,714.29 = 311,672.17 : x
  2. Step 2: Convert to fraction form
    843,900.49/1,265,714.29 = 311,672.17/x
  3. Step 3: Cross multiply
    843,900.49x = 1,265,714.29 × 311,672.17
  4. Step 4: Simplify right side
    843,900.49x = 394,487,916,589.61
  5. Step 5: Solve for x
    x = 394,487,916,589.61/843,900.49
  6. Step 6: Final answer
    x = 467,457.86

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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.