Home / 856,946.39-1,285,086.87-457,369.34

Finding the Fourth Proportional to 856,946.39, 1,285,086.87 and 457,369.34

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Solution

The fourth proportional to 856,946.39, 1,285,086.87 and 457,369.34 is: 685,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,946.39 : 1,285,086.87 = 457,369.34 : x
  2. Step 2: Convert to fraction form
    856,946.39/1,285,086.87 = 457,369.34/x
  3. Step 3: Cross multiply
    856,946.39x = 1,285,086.87 × 457,369.34
  4. Step 4: Simplify right side
    856,946.39x = 587,759,327,149.13
  5. Step 5: Solve for x
    x = 587,759,327,149.13/856,946.39
  6. Step 6: Final answer
    x = 685,876.43

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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.