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Finding the Fourth Proportional to 408,657.87, 612,980.64 and 183,859.56

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Solution

The fourth proportional to 408,657.87, 612,980.64 and 183,859.56 is: 275,786.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,657.87 : 612,980.64 = 183,859.56 : x
  2. Step 2: Convert to fraction form
    408,657.87/612,980.64 = 183,859.56/x
  3. Step 3: Cross multiply
    408,657.87x = 612,980.64 × 183,859.56
  4. Step 4: Simplify right side
    408,657.87x = 112,702,350,758.92
  5. Step 5: Solve for x
    x = 112,702,350,758.92/408,657.87
  6. Step 6: Final answer
    x = 275,786.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.