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Finding the Fourth Proportional to 1,794,321, 2,476,154.46 and 989,505

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Solution

The fourth proportional to 1,794,321, 2,476,154.46 and 989,505 is: 1,365,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794,321 : 2,476,154.46 = 989,505 : x
  2. Step 2: Convert to fraction form
    1,794,321/2,476,154.46 = 989,505/x
  3. Step 3: Cross multiply
    1,794,321x = 2,476,154.46 × 989,505
  4. Step 4: Simplify right side
    1,794,321x = 2,450,167,218,942.30
  5. Step 5: Solve for x
    x = 2,450,167,218,942.30/1,794,321
  6. Step 6: Final answer
    x = 1,365,512.20

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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.