Home / 831,714.66-1,147,764.87-469,137.42

Finding the Fourth Proportional to 831,714.66, 1,147,764.87 and 469,137.42

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Solution

The fourth proportional to 831,714.66, 1,147,764.87 and 469,137.42 is: 647,408.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,714.66 : 1,147,764.87 = 469,137.42 : x
  2. Step 2: Convert to fraction form
    831,714.66/1,147,764.87 = 469,137.42/x
  3. Step 3: Cross multiply
    831,714.66x = 1,147,764.87 × 469,137.42
  4. Step 4: Simplify right side
    831,714.66x = 538,459,449,878.44
  5. Step 5: Solve for x
    x = 538,459,449,878.44/831,714.66
  6. Step 6: Final answer
    x = 647,408.87

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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.