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Finding the Fourth Proportional to 415,335.80, 622,128.90 and 336,603.80

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Solution

The fourth proportional to 415,335.80, 622,128.90 and 336,603.80 is: 504,196.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,335.80 : 622,128.90 = 336,603.80 : x
  2. Step 2: Convert to fraction form
    415,335.80/622,128.90 = 336,603.80/x
  3. Step 3: Cross multiply
    415,335.80x = 622,128.90 × 336,603.80
  4. Step 4: Simplify right side
    415,335.80x = 209,410,951,829.82
  5. Step 5: Solve for x
    x = 209,410,951,829.82/415,335.80
  6. Step 6: Final answer
    x = 504,196.73

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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.