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Finding the Fourth Proportional to 483,637.52, 667,366.74 and 279,657.65

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Solution

The fourth proportional to 483,637.52, 667,366.74 and 279,657.65 is: 385,896.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,637.52 : 667,366.74 = 279,657.65 : x
  2. Step 2: Convert to fraction form
    483,637.52/667,366.74 = 279,657.65/x
  3. Step 3: Cross multiply
    483,637.52x = 667,366.74 × 279,657.65
  4. Step 4: Simplify right side
    483,637.52x = 186,634,210,859.73
  5. Step 5: Solve for x
    x = 186,634,210,859.73/483,637.52
  6. Step 6: Final answer
    x = 385,896.89

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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.