Home / 436,285.67-654,439.43-120,745.31

Finding the Fourth Proportional to 436,285.67, 654,439.43 and 120,745.31

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Solution

The fourth proportional to 436,285.67, 654,439.43 and 120,745.31 is: 181,120.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,285.67 : 654,439.43 = 120,745.31 : x
  2. Step 2: Convert to fraction form
    436,285.67/654,439.43 = 120,745.31/x
  3. Step 3: Cross multiply
    436,285.67x = 654,439.43 × 120,745.31
  4. Step 4: Simplify right side
    436,285.67x = 79,020,488,428.44
  5. Step 5: Solve for x
    x = 79,020,488,428.44/436,285.67
  6. Step 6: Final answer
    x = 181,120.98

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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.