Home / 856,695.26-1,285,106.60-257,608.46

Finding the Fourth Proportional to 856,695.26, 1,285,106.60 and 257,608.46

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Solution

The fourth proportional to 856,695.26, 1,285,106.60 and 257,608.46 is: 386,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,695.26 : 1,285,106.60 = 257,608.46 : x
  2. Step 2: Convert to fraction form
    856,695.26/1,285,106.60 = 257,608.46/x
  3. Step 3: Cross multiply
    856,695.26x = 1,285,106.60 × 257,608.46
  4. Step 4: Simplify right side
    856,695.26x = 331,054,326,380.32
  5. Step 5: Solve for x
    x = 331,054,326,380.32/856,695.26
  6. Step 6: Final answer
    x = 386,431.84

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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.