Home / 831,885.96-1,148,002.62-449,912.74

Finding the Fourth Proportional to 831,885.96, 1,148,002.62 and 449,912.74

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Solution

The fourth proportional to 831,885.96, 1,148,002.62 and 449,912.74 is: 620,879.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,885.96 : 1,148,002.62 = 449,912.74 : x
  2. Step 2: Convert to fraction form
    831,885.96/1,148,002.62 = 449,912.74/x
  3. Step 3: Cross multiply
    831,885.96x = 1,148,002.62 × 449,912.74
  4. Step 4: Simplify right side
    831,885.96x = 516,501,004,291.38
  5. Step 5: Solve for x
    x = 516,501,004,291.38/831,885.96
  6. Step 6: Final answer
    x = 620,879.58

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1.5x scale

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.