Home / 1,231,395.48-1,698,876.99-721,999.44

Finding the Fourth Proportional to 1,231,395.48, 1,698,876.99 and 721,999.44

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Solution

The fourth proportional to 1,231,395.48, 1,698,876.99 and 721,999.44 is: 996,096.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,395.48 : 1,698,876.99 = 721,999.44 : x
  2. Step 2: Convert to fraction form
    1,231,395.48/1,698,876.99 = 721,999.44/x
  3. Step 3: Cross multiply
    1,231,395.48x = 1,698,876.99 × 721,999.44
  4. Step 4: Simplify right side
    1,231,395.48x = 1,226,588,235,408.89
  5. Step 5: Solve for x
    x = 1,226,588,235,408.89/1,231,395.48
  6. Step 6: Final answer
    x = 996,096.10

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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.