Home / 831,661.52-1,147,693.56-449,688.56

Finding the Fourth Proportional to 831,661.52, 1,147,693.56 and 449,688.56

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Solution

The fourth proportional to 831,661.52, 1,147,693.56 and 449,688.56 is: 620,570.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,661.52 : 1,147,693.56 = 449,688.56 : x
  2. Step 2: Convert to fraction form
    831,661.52/1,147,693.56 = 449,688.56/x
  3. Step 3: Cross multiply
    831,661.52x = 1,147,693.56 × 449,688.56
  4. Step 4: Simplify right side
    831,661.52x = 516,104,664,317.67
  5. Step 5: Solve for x
    x = 516,104,664,317.67/831,661.52
  6. Step 6: Final answer
    x = 620,570.57

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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.