Home / 951,520.37-1,313,128.55-521,799.49

Finding the Fourth Proportional to 951,520.37, 1,313,128.55 and 521,799.49

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Solution

The fourth proportional to 951,520.37, 1,313,128.55 and 521,799.49 is: 720,099.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,520.37 : 1,313,128.55 = 521,799.49 : x
  2. Step 2: Convert to fraction form
    951,520.37/1,313,128.55 = 521,799.49/x
  3. Step 3: Cross multiply
    951,520.37x = 1,313,128.55 × 521,799.49
  4. Step 4: Simplify right side
    951,520.37x = 685,189,798,519.80
  5. Step 5: Solve for x
    x = 685,189,798,519.80/951,520.37
  6. Step 6: Final answer
    x = 720,099.98

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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.