Home / 856,925.85-1,285,393.38-257,882.94

Finding the Fourth Proportional to 856,925.85, 1,285,393.38 and 257,882.94

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Solution

The fourth proportional to 856,925.85, 1,285,393.38 and 257,882.94 is: 386,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,925.85 : 1,285,393.38 = 257,882.94 : x
  2. Step 2: Convert to fraction form
    856,925.85/1,285,393.38 = 257,882.94/x
  3. Step 3: Cross multiply
    856,925.85x = 1,285,393.38 × 257,882.94
  4. Step 4: Simplify right side
    856,925.85x = 331,481,023,890.94
  5. Step 5: Solve for x
    x = 331,481,023,890.94/856,925.85
  6. Step 6: Final answer
    x = 386,825.80

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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.