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Finding the Fourth Proportional to 681,736.88, 940,801.56 and 379,950.32

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Solution

The fourth proportional to 681,736.88, 940,801.56 and 379,950.32 is: 524,334.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,736.88 : 940,801.56 = 379,950.32 : x
  2. Step 2: Convert to fraction form
    681,736.88/940,801.56 = 379,950.32/x
  3. Step 3: Cross multiply
    681,736.88x = 940,801.56 × 379,950.32
  4. Step 4: Simplify right side
    681,736.88x = 357,457,853,778.50
  5. Step 5: Solve for x
    x = 357,457,853,778.50/681,736.88
  6. Step 6: Final answer
    x = 524,334.04

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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.