Home / 856,924.35-1,285,391.12-257,881.43

Finding the Fourth Proportional to 856,924.35, 1,285,391.12 and 257,881.43

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Solution

The fourth proportional to 856,924.35, 1,285,391.12 and 257,881.43 is: 386,823.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,924.35 : 1,285,391.12 = 257,881.43 : x
  2. Step 2: Convert to fraction form
    856,924.35/1,285,391.12 = 257,881.43/x
  3. Step 3: Cross multiply
    856,924.35x = 1,285,391.12 × 257,881.43
  4. Step 4: Simplify right side
    856,924.35x = 331,478,492,418.54
  5. Step 5: Solve for x
    x = 331,478,492,418.54/856,924.35
  6. Step 6: Final answer
    x = 386,823.52

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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.