Home / 419,928.66-629,707.68-120,341.25

Finding the Fourth Proportional to 419,928.66, 629,707.68 and 120,341.25

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Solution

The fourth proportional to 419,928.66, 629,707.68 and 120,341.25 is: 180,458.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,928.66 : 629,707.68 = 120,341.25 : x
  2. Step 2: Convert to fraction form
    419,928.66/629,707.68 = 120,341.25/x
  3. Step 3: Cross multiply
    419,928.66x = 629,707.68 × 120,341.25
  4. Step 4: Simplify right side
    419,928.66x = 75,779,809,345.80
  5. Step 5: Solve for x
    x = 75,779,809,345.80/419,928.66
  6. Step 6: Final answer
    x = 180,458.77

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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.