Home / 1,678,390.78-2,519,781.40-996,522.45

Finding the Fourth Proportional to 1,678,390.78, 2,519,781.40 and 996,522.45

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Solution

The fourth proportional to 1,678,390.78, 2,519,781.40 and 996,522.45 is: 1,496,087.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,390.78 : 2,519,781.40 = 996,522.45 : x
  2. Step 2: Convert to fraction form
    1,678,390.78/2,519,781.40 = 996,522.45/x
  3. Step 3: Cross multiply
    1,678,390.78x = 2,519,781.40 × 996,522.45
  4. Step 4: Simplify right side
    1,678,390.78x = 2,511,018,734,192.43
  5. Step 5: Solve for x
    x = 2,511,018,734,192.43/1,678,390.78
  6. Step 6: Final answer
    x = 1,496,087.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.