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Finding the Fourth Proportional to 670,383.25, 925,147.13 and 364,480.21

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Solution

The fourth proportional to 670,383.25, 925,147.13 and 364,480.21 is: 502,992.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,383.25 : 925,147.13 = 364,480.21 : x
  2. Step 2: Convert to fraction form
    670,383.25/925,147.13 = 364,480.21/x
  3. Step 3: Cross multiply
    670,383.25x = 925,147.13 × 364,480.21
  4. Step 4: Simplify right side
    670,383.25x = 337,197,819,843.37
  5. Step 5: Solve for x
    x = 337,197,819,843.37/670,383.25
  6. Step 6: Final answer
    x = 502,992.61

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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.