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Finding the Fourth Proportional to 496,954.65, 685,794.83 and 279,133.05

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Solution

The fourth proportional to 496,954.65, 685,794.83 and 279,133.05 is: 385,202.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,954.65 : 685,794.83 = 279,133.05 : x
  2. Step 2: Convert to fraction form
    496,954.65/685,794.83 = 279,133.05/x
  3. Step 3: Cross multiply
    496,954.65x = 685,794.83 × 279,133.05
  4. Step 4: Simplify right side
    496,954.65x = 191,428,001,176.47
  5. Step 5: Solve for x
    x = 191,428,001,176.47/496,954.65
  6. Step 6: Final answer
    x = 385,202.15

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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.