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Finding the Fourth Proportional to 681,752.34, 940,850.37 and 379,948.50

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Solution

The fourth proportional to 681,752.34, 940,850.37 and 379,948.50 is: 524,346.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,752.34 : 940,850.37 = 379,948.50 : x
  2. Step 2: Convert to fraction form
    681,752.34/940,850.37 = 379,948.50/x
  3. Step 3: Cross multiply
    681,752.34x = 940,850.37 × 379,948.50
  4. Step 4: Simplify right side
    681,752.34x = 357,474,686,805.95
  5. Step 5: Solve for x
    x = 357,474,686,805.95/681,752.34
  6. Step 6: Final answer
    x = 524,346.84

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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.