Home / 951,520.62-1,313,128.89-521,799.74

Finding the Fourth Proportional to 951,520.62, 1,313,128.89 and 521,799.74

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Solution

The fourth proportional to 951,520.62, 1,313,128.89 and 521,799.74 is: 720,100.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,520.62 : 1,313,128.89 = 521,799.74 : x
  2. Step 2: Convert to fraction form
    951,520.62/1,313,128.89 = 521,799.74/x
  3. Step 3: Cross multiply
    951,520.62x = 1,313,128.89 × 521,799.74
  4. Step 4: Simplify right side
    951,520.62x = 685,190,313,388.49
  5. Step 5: Solve for x
    x = 685,190,313,388.49/951,520.62
  6. Step 6: Final answer
    x = 720,100.33

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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.