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Finding the Fourth Proportional to 613,556.91, 846,743.40 and 368,616.60

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Solution

The fourth proportional to 613,556.91, 846,743.40 and 368,616.60 is: 508,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,556.91 : 846,743.40 = 368,616.60 : x
  2. Step 2: Convert to fraction form
    613,556.91/846,743.40 = 368,616.60/x
  3. Step 3: Cross multiply
    613,556.91x = 846,743.40 × 368,616.60
  4. Step 4: Simplify right side
    613,556.91x = 312,123,673,180.44
  5. Step 5: Solve for x
    x = 312,123,673,180.44/613,556.91
  6. Step 6: Final answer
    x = 508,711.85

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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.