Home / 856,960.35-1,285,181.72-257,762.44

Finding the Fourth Proportional to 856,960.35, 1,285,181.72 and 257,762.44

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Solution

The fourth proportional to 856,960.35, 1,285,181.72 and 257,762.44 is: 386,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,960.35 : 1,285,181.72 = 257,762.44 : x
  2. Step 2: Convert to fraction form
    856,960.35/1,285,181.72 = 257,762.44/x
  3. Step 3: Cross multiply
    856,960.35x = 1,285,181.72 × 257,762.44
  4. Step 4: Simplify right side
    856,960.35x = 331,271,575,990.60
  5. Step 5: Solve for x
    x = 331,271,575,990.60/856,960.35
  6. Step 6: Final answer
    x = 386,565.81

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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.