Home / 1,284,371.56-1,771,956.90-831,912.04

Finding the Fourth Proportional to 1,284,371.56, 1,771,956.90 and 831,912.04

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Solution

The fourth proportional to 1,284,371.56, 1,771,956.90 and 831,912.04 is: 1,147,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,371.56 : 1,771,956.90 = 831,912.04 : x
  2. Step 2: Convert to fraction form
    1,284,371.56/1,771,956.90 = 831,912.04/x
  3. Step 3: Cross multiply
    1,284,371.56x = 1,771,956.90 × 831,912.04
  4. Step 4: Simplify right side
    1,284,371.56x = 1,474,112,279,471.08
  5. Step 5: Solve for x
    x = 1,474,112,279,471.08/1,284,371.56
  6. Step 6: Final answer
    x = 1,147,730.40

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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.