Home / 1,815,172.03-2,722,773.61-518,321.05

Finding the Fourth Proportional to 1,815,172.03, 2,722,773.61 and 518,321.05

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Solution

The fourth proportional to 1,815,172.03, 2,722,773.61 and 518,321.05 is: 777,486.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,172.03 : 2,722,773.61 = 518,321.05 : x
  2. Step 2: Convert to fraction form
    1,815,172.03/2,722,773.61 = 518,321.05/x
  3. Step 3: Cross multiply
    1,815,172.03x = 2,722,773.61 × 518,321.05
  4. Step 4: Simplify right side
    1,815,172.03x = 1,411,270,876,943.98
  5. Step 5: Solve for x
    x = 1,411,270,876,943.98/1,815,172.03
  6. Step 6: Final answer
    x = 777,486.02

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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.