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Finding the Fourth Proportional to 1,340,034.03, 1,848,498.44 and 823,428.99

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Solution

The fourth proportional to 1,340,034.03, 1,848,498.44 and 823,428.99 is: 1,135,872.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,034.03 : 1,848,498.44 = 823,428.99 : x
  2. Step 2: Convert to fraction form
    1,340,034.03/1,848,498.44 = 823,428.99/x
  3. Step 3: Cross multiply
    1,340,034.03x = 1,848,498.44 × 823,428.99
  4. Step 4: Simplify right side
    1,340,034.03x = 1,522,107,199,348.63
  5. Step 5: Solve for x
    x = 1,522,107,199,348.63/1,340,034.03
  6. Step 6: Final answer
    x = 1,135,872.05

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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.