Home / 831,529.36-1,147,510.61-449,556.04

Finding the Fourth Proportional to 831,529.36, 1,147,510.61 and 449,556.04

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Solution

The fourth proportional to 831,529.36, 1,147,510.61 and 449,556.04 is: 620,387.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,529.36 : 1,147,510.61 = 449,556.04 : x
  2. Step 2: Convert to fraction form
    831,529.36/1,147,510.61 = 449,556.04/x
  3. Step 3: Cross multiply
    831,529.36x = 1,147,510.61 × 449,556.04
  4. Step 4: Simplify right side
    831,529.36x = 515,870,325,689.58
  5. Step 5: Solve for x
    x = 515,870,325,689.58/831,529.36
  6. Step 6: Final answer
    x = 620,387.39

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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.