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Finding the Fourth Proportional to 1,425,618, 1,967,352.84 and 789,714

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Solution

The fourth proportional to 1,425,618, 1,967,352.84 and 789,714 is: 1,089,805.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,618 : 1,967,352.84 = 789,714 : x
  2. Step 2: Convert to fraction form
    1,425,618/1,967,352.84 = 789,714/x
  3. Step 3: Cross multiply
    1,425,618x = 1,967,352.84 × 789,714
  4. Step 4: Simplify right side
    1,425,618x = 1,553,646,080,687.76
  5. Step 5: Solve for x
    x = 1,553,646,080,687.76/1,425,618
  6. Step 6: Final answer
    x = 1,089,805.32

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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.