Home / 831,857.63-1,147,956.98-449,884.40

Finding the Fourth Proportional to 831,857.63, 1,147,956.98 and 449,884.40

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Solution

The fourth proportional to 831,857.63, 1,147,956.98 and 449,884.40 is: 620,836.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,857.63 : 1,147,956.98 = 449,884.40 : x
  2. Step 2: Convert to fraction form
    831,857.63/1,147,956.98 = 449,884.40/x
  3. Step 3: Cross multiply
    831,857.63x = 1,147,956.98 × 449,884.40
  4. Step 4: Simplify right side
    831,857.63x = 516,447,929,183.91
  5. Step 5: Solve for x
    x = 516,447,929,183.91/831,857.63
  6. Step 6: Final answer
    x = 620,836.92

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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.