Home / 831,969.72-1,247,954.58-299,478.96

Finding the Fourth Proportional to 831,969.72, 1,247,954.58 and 299,478.96

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Solution

The fourth proportional to 831,969.72, 1,247,954.58 and 299,478.96 is: 449,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,969.72 : 1,247,954.58 = 299,478.96 : x
  2. Step 2: Convert to fraction form
    831,969.72/1,247,954.58 = 299,478.96/x
  3. Step 3: Cross multiply
    831,969.72x = 1,247,954.58 × 299,478.96
  4. Step 4: Simplify right side
    831,969.72x = 373,736,139,745.64
  5. Step 5: Solve for x
    x = 373,736,139,745.64/831,969.72
  6. Step 6: Final answer
    x = 449,218.44

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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.