Home / 2,619,990.45-3,929,985.68-726,731.89

Finding the Fourth Proportional to 2,619,990.45, 3,929,985.68 and 726,731.89

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Solution

The fourth proportional to 2,619,990.45, 3,929,985.68 and 726,731.89 is: 1,090,097.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619,990.45 : 3,929,985.68 = 726,731.89 : x
  2. Step 2: Convert to fraction form
    2,619,990.45/3,929,985.68 = 726,731.89/x
  3. Step 3: Cross multiply
    2,619,990.45x = 3,929,985.68 × 726,731.89
  4. Step 4: Simplify right side
    2,619,990.45x = 2,856,045,920,899.34
  5. Step 5: Solve for x
    x = 2,856,045,920,899.34/2,619,990.45
  6. Step 6: Final answer
    x = 1,090,097.84

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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.