Home / 831,763.73-1,147,829.73-449,789.60

Finding the Fourth Proportional to 831,763.73, 1,147,829.73 and 449,789.60

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Solution

The fourth proportional to 831,763.73, 1,147,829.73 and 449,789.60 is: 620,707.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,763.73 : 1,147,829.73 = 449,789.60 : x
  2. Step 2: Convert to fraction form
    831,763.73/1,147,829.73 = 449,789.60/x
  3. Step 3: Cross multiply
    831,763.73x = 1,147,829.73 × 449,789.60
  4. Step 4: Simplify right side
    831,763.73x = 516,281,875,124.81
  5. Step 5: Solve for x
    x = 516,281,875,124.81/831,763.73
  6. Step 6: Final answer
    x = 620,707.37

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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.