Home / 831,655.28-1,147,685.10-449,681.96

Finding the Fourth Proportional to 831,655.28, 1,147,685.10 and 449,681.96

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Solution

The fourth proportional to 831,655.28, 1,147,685.10 and 449,681.96 is: 620,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,655.28 : 1,147,685.10 = 449,681.96 : x
  2. Step 2: Convert to fraction form
    831,655.28/1,147,685.10 = 449,681.96/x
  3. Step 3: Cross multiply
    831,655.28x = 1,147,685.10 × 449,681.96
  4. Step 4: Simplify right side
    831,655.28x = 516,093,285,230.80
  5. Step 5: Solve for x
    x = 516,093,285,230.80/831,655.28
  6. Step 6: Final answer
    x = 620,561.54

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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.