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Finding the Fourth Proportional to 681,747.84, 940,844.16 and 379,944

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Solution

The fourth proportional to 681,747.84, 940,844.16 and 379,944 is: 524,340.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,747.84 : 940,844.16 = 379,944 : x
  2. Step 2: Convert to fraction form
    681,747.84/940,844.16 = 379,944/x
  3. Step 3: Cross multiply
    681,747.84x = 940,844.16 × 379,944
  4. Step 4: Simplify right side
    681,747.84x = 357,468,093,527.04
  5. Step 5: Solve for x
    x = 357,468,093,527.04/681,747.84
  6. Step 6: Final answer
    x = 524,340.63

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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.