Home / 857,294.56-1,285,990.44-258,338.44

Finding the Fourth Proportional to 857,294.56, 1,285,990.44 and 258,338.44

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Solution

The fourth proportional to 857,294.56, 1,285,990.44 and 258,338.44 is: 387,522.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,294.56 : 1,285,990.44 = 258,338.44 : x
  2. Step 2: Convert to fraction form
    857,294.56/1,285,990.44 = 258,338.44/x
  3. Step 3: Cross multiply
    857,294.56x = 1,285,990.44 × 258,338.44
  4. Step 4: Simplify right side
    857,294.56x = 332,220,764,124.51
  5. Step 5: Solve for x
    x = 332,220,764,124.51/857,294.56
  6. Step 6: Final answer
    x = 387,522.31

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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.