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Finding the Fourth Proportional to 613,815, 846,771.31 and 476,912.04

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Solution

The fourth proportional to 613,815, 846,771.31 and 476,912.04 is: 657,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,815 : 846,771.31 = 476,912.04 : x
  2. Step 2: Convert to fraction form
    613,815/846,771.31 = 476,912.04/x
  3. Step 3: Cross multiply
    613,815x = 846,771.31 × 476,912.04
  4. Step 4: Simplify right side
    613,815x = 403,835,432,865.57
  5. Step 5: Solve for x
    x = 403,835,432,865.57/613,815
  6. Step 6: Final answer
    x = 657,910.66

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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.