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Finding the Fourth Proportional to 1,626,296, 2,244,288.48 and 990,392

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Solution

The fourth proportional to 1,626,296, 2,244,288.48 and 990,392 is: 1,366,740.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626,296 : 2,244,288.48 = 990,392 : x
  2. Step 2: Convert to fraction form
    1,626,296/2,244,288.48 = 990,392/x
  3. Step 3: Cross multiply
    1,626,296x = 2,244,288.48 × 990,392
  4. Step 4: Simplify right side
    1,626,296x = 2,222,725,356,284.16
  5. Step 5: Solve for x
    x = 2,222,725,356,284.16/1,626,296
  6. Step 6: Final answer
    x = 1,366,740.96

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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.