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Finding the Fourth Proportional to 682,627.88, 941,992.26 and 380,763.56

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Solution

The fourth proportional to 682,627.88, 941,992.26 and 380,763.56 is: 525,434.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,627.88 : 941,992.26 = 380,763.56 : x
  2. Step 2: Convert to fraction form
    682,627.88/941,992.26 = 380,763.56/x
  3. Step 3: Cross multiply
    682,627.88x = 941,992.26 × 380,763.56
  4. Step 4: Simplify right side
    682,627.88x = 358,676,326,410.05
  5. Step 5: Solve for x
    x = 358,676,326,410.05/682,627.88
  6. Step 6: Final answer
    x = 525,434.63

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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.