Home / 815,853.69-1,223,775.41-317,217.69

Finding the Fourth Proportional to 815,853.69, 1,223,775.41 and 317,217.69

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Solution

The fourth proportional to 815,853.69, 1,223,775.41 and 317,217.69 is: 475,824.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,853.69 : 1,223,775.41 = 317,217.69 : x
  2. Step 2: Convert to fraction form
    815,853.69/1,223,775.41 = 317,217.69/x
  3. Step 3: Cross multiply
    815,853.69x = 1,223,775.41 × 317,217.69
  4. Step 4: Simplify right side
    815,853.69x = 388,203,207,052.92
  5. Step 5: Solve for x
    x = 388,203,207,052.92/815,853.69
  6. Step 6: Final answer
    x = 475,824.54

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1.5x scale

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.