Home / 831,096-1,246,851.36-240,120

Finding the Fourth Proportional to 831,096, 1,246,851.36 and 240,120

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Solution

The fourth proportional to 831,096, 1,246,851.36 and 240,120 is: 360,239.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,096 : 1,246,851.36 = 240,120 : x
  2. Step 2: Convert to fraction form
    831,096/1,246,851.36 = 240,120/x
  3. Step 3: Cross multiply
    831,096x = 1,246,851.36 × 240,120
  4. Step 4: Simplify right side
    831,096x = 299,393,948,563.20
  5. Step 5: Solve for x
    x = 299,393,948,563.20/831,096
  6. Step 6: Final answer
    x = 360,239.91

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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.