Home / 831,714.16-1,147,764.18-469,136.89

Finding the Fourth Proportional to 831,714.16, 1,147,764.18 and 469,136.89

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Solution

The fourth proportional to 831,714.16, 1,147,764.18 and 469,136.89 is: 647,408.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,714.16 : 1,147,764.18 = 469,136.89 : x
  2. Step 2: Convert to fraction form
    831,714.16/1,147,764.18 = 469,136.89/x
  3. Step 3: Cross multiply
    831,714.16x = 1,147,764.18 × 469,136.89
  4. Step 4: Simplify right side
    831,714.16x = 538,458,517,858.60
  5. Step 5: Solve for x
    x = 538,458,517,858.60/831,714.16
  6. Step 6: Final answer
    x = 647,408.14

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1.5x scale

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.