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Finding the Fourth Proportional to 505,552.82, 697,627.77 and 279,180.50

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Solution

The fourth proportional to 505,552.82, 697,627.77 and 279,180.50 is: 385,249.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,552.82 : 697,627.77 = 279,180.50 : x
  2. Step 2: Convert to fraction form
    505,552.82/697,627.77 = 279,180.50/x
  3. Step 3: Cross multiply
    505,552.82x = 697,627.77 × 279,180.50
  4. Step 4: Simplify right side
    505,552.82x = 194,764,069,642.49
  5. Step 5: Solve for x
    x = 194,764,069,642.49/505,552.82
  6. Step 6: Final answer
    x = 385,249.69

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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.