Home / 682,021.38-941,274.36-391,723.86

Finding the Fourth Proportional to 682,021.38, 941,274.36 and 391,723.86

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Solution

The fourth proportional to 682,021.38, 941,274.36 and 391,723.86 is: 540,627.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,021.38 : 941,274.36 = 391,723.86 : x
  2. Step 2: Convert to fraction form
    682,021.38/941,274.36 = 391,723.86/x
  3. Step 3: Cross multiply
    682,021.38x = 941,274.36 × 391,723.86
  4. Step 4: Simplify right side
    682,021.38x = 368,719,625,618.23
  5. Step 5: Solve for x
    x = 368,719,625,618.23/682,021.38
  6. Step 6: Final answer
    x = 540,627.66

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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.