Home / 438,790.57-658,037.62-123,172.45

Finding the Fourth Proportional to 438,790.57, 658,037.62 and 123,172.45

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Solution

The fourth proportional to 438,790.57, 658,037.62 and 123,172.45 is: 184,717.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,790.57 : 658,037.62 = 123,172.45 : x
  2. Step 2: Convert to fraction form
    438,790.57/658,037.62 = 123,172.45/x
  3. Step 3: Cross multiply
    438,790.57x = 658,037.62 × 123,172.45
  4. Step 4: Simplify right side
    438,790.57x = 81,052,104,356.44
  5. Step 5: Solve for x
    x = 81,052,104,356.44/438,790.57
  6. Step 6: Final answer
    x = 184,717.06

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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.