Home / 815,746.82-1,223,620.60-310,191

Finding the Fourth Proportional to 815,746.82, 1,223,620.60 and 310,191

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Solution

The fourth proportional to 815,746.82, 1,223,620.60 and 310,191 is: 465,286.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,746.82 : 1,223,620.60 = 310,191 : x
  2. Step 2: Convert to fraction form
    815,746.82/1,223,620.60 = 310,191/x
  3. Step 3: Cross multiply
    815,746.82x = 1,223,620.60 × 310,191
  4. Step 4: Simplify right side
    815,746.82x = 379,556,097,534.60
  5. Step 5: Solve for x
    x = 379,556,097,534.60/815,746.82
  6. Step 6: Final answer
    x = 465,286.64

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Similar ratio
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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.