Home / 1,992,912.40-2,989,757.40-855,672.40

Finding the Fourth Proportional to 1,992,912.40, 2,989,757.40 and 855,672.40

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Solution

The fourth proportional to 1,992,912.40, 2,989,757.40 and 855,672.40 is: 1,283,675.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,912.40 : 2,989,757.40 = 855,672.40 : x
  2. Step 2: Convert to fraction form
    1,992,912.40/2,989,757.40 = 855,672.40/x
  3. Step 3: Cross multiply
    1,992,912.40x = 2,989,757.40 × 855,672.40
  4. Step 4: Simplify right side
    1,992,912.40x = 2,558,252,889,875.76
  5. Step 5: Solve for x
    x = 2,558,252,889,875.76/1,992,912.40
  6. Step 6: Final answer
    x = 1,283,675.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.