Home / 1,385,912.96-2,078,942.82-439,357.52

Finding the Fourth Proportional to 1,385,912.96, 2,078,942.82 and 439,357.52

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Solution

The fourth proportional to 1,385,912.96, 2,078,942.82 and 439,357.52 is: 659,059.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,912.96 : 2,078,942.82 = 439,357.52 : x
  2. Step 2: Convert to fraction form
    1,385,912.96/2,078,942.82 = 439,357.52/x
  3. Step 3: Cross multiply
    1,385,912.96x = 2,078,942.82 × 439,357.52
  4. Step 4: Simplify right side
    1,385,912.96x = 913,399,161,617.01
  5. Step 5: Solve for x
    x = 913,399,161,617.01/1,385,912.96
  6. Step 6: Final answer
    x = 659,059.54

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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.