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Finding the Fourth Proportional to 1,626,304, 2,244,299.52 and 990,400

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Solution

The fourth proportional to 1,626,304, 2,244,299.52 and 990,400 is: 1,366,752

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626,304 : 2,244,299.52 = 990,400 : x
  2. Step 2: Convert to fraction form
    1,626,304/2,244,299.52 = 990,400/x
  3. Step 3: Cross multiply
    1,626,304x = 2,244,299.52 × 990,400
  4. Step 4: Simplify right side
    1,626,304x = 2,222,754,244,608
  5. Step 5: Solve for x
    x = 2,222,754,244,608/1,626,304
  6. Step 6: Final answer
    x = 1,366,752

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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.