Home / 857,293.56-1,285,988.94-258,337.44

Finding the Fourth Proportional to 857,293.56, 1,285,988.94 and 258,337.44

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Solution

The fourth proportional to 857,293.56, 1,285,988.94 and 258,337.44 is: 387,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,293.56 : 1,285,988.94 = 258,337.44 : x
  2. Step 2: Convert to fraction form
    857,293.56/1,285,988.94 = 258,337.44/x
  3. Step 3: Cross multiply
    857,293.56x = 1,285,988.94 × 258,337.44
  4. Step 4: Simplify right side
    857,293.56x = 332,219,090,627.91
  5. Step 5: Solve for x
    x = 332,219,090,627.91/857,293.56
  6. Step 6: Final answer
    x = 387,520.81

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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.