Home / 831,939.57-1,147,977.81-469,342.26

Finding the Fourth Proportional to 831,939.57, 1,147,977.81 and 469,342.26

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Solution

The fourth proportional to 831,939.57, 1,147,977.81 and 469,342.26 is: 647,636.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,939.57 : 1,147,977.81 = 469,342.26 : x
  2. Step 2: Convert to fraction form
    831,939.57/1,147,977.81 = 469,342.26/x
  3. Step 3: Cross multiply
    831,939.57x = 1,147,977.81 × 469,342.26
  4. Step 4: Simplify right side
    831,939.57x = 538,794,499,775.25
  5. Step 5: Solve for x
    x = 538,794,499,775.25/831,939.57
  6. Step 6: Final answer
    x = 647,636.58

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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.