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Finding the Fourth Proportional to 613,063.15, 919,584.09 and 275,865.21

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Solution

The fourth proportional to 613,063.15, 919,584.09 and 275,865.21 is: 413,793.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,063.15 : 919,584.09 = 275,865.21 : x
  2. Step 2: Convert to fraction form
    613,063.15/919,584.09 = 275,865.21/x
  3. Step 3: Cross multiply
    613,063.15x = 919,584.09 × 275,865.21
  4. Step 4: Simplify right side
    613,063.15x = 253,681,258,100.51
  5. Step 5: Solve for x
    x = 253,681,258,100.51/613,063.15
  6. Step 6: Final answer
    x = 413,793.03

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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.