Home / 1,321,774.24-1,982,136.48-479,866.72

Finding the Fourth Proportional to 1,321,774.24, 1,982,136.48 and 479,866.72

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Solution

The fourth proportional to 1,321,774.24, 1,982,136.48 and 479,866.72 is: 719,609.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,774.24 : 1,982,136.48 = 479,866.72 : x
  2. Step 2: Convert to fraction form
    1,321,774.24/1,982,136.48 = 479,866.72/x
  3. Step 3: Cross multiply
    1,321,774.24x = 1,982,136.48 × 479,866.72
  4. Step 4: Simplify right side
    1,321,774.24x = 951,161,331,249.95
  5. Step 5: Solve for x
    x = 951,161,331,249.95/1,321,774.24
  6. Step 6: Final answer
    x = 719,609.52

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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.