Home / 786,730.25-1,085,859.68-500,194.37

Finding the Fourth Proportional to 786,730.25, 1,085,859.68 and 500,194.37

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Solution

The fourth proportional to 786,730.25, 1,085,859.68 and 500,194.37 is: 690,377.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,730.25 : 1,085,859.68 = 500,194.37 : x
  2. Step 2: Convert to fraction form
    786,730.25/1,085,859.68 = 500,194.37/x
  3. Step 3: Cross multiply
    786,730.25x = 1,085,859.68 × 500,194.37
  4. Step 4: Simplify right side
    786,730.25x = 543,140,890,615.73
  5. Step 5: Solve for x
    x = 543,140,890,615.73/786,730.25
  6. Step 6: Final answer
    x = 690,377.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.