Home / 786,734.62-1,085,865.69-500,198.74

Finding the Fourth Proportional to 786,734.62, 1,085,865.69 and 500,198.74

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Solution

The fourth proportional to 786,734.62, 1,085,865.69 and 500,198.74 is: 690,383.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,734.62 : 1,085,865.69 = 500,198.74 : x
  2. Step 2: Convert to fraction form
    786,734.62/1,085,865.69 = 500,198.74/x
  3. Step 3: Cross multiply
    786,734.62x = 1,085,865.69 × 500,198.74
  4. Step 4: Simplify right side
    786,734.62x = 543,148,649,947.23
  5. Step 5: Solve for x
    x = 543,148,649,947.23/786,734.62
  6. Step 6: Final answer
    x = 690,383.56

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1.5x scale

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.