Home / 478,109.18-659,735.89-274,104

Finding the Fourth Proportional to 478,109.18, 659,735.89 and 274,104

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Solution

The fourth proportional to 478,109.18, 659,735.89 and 274,104 is: 378,232.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,109.18 : 659,735.89 = 274,104 : x
  2. Step 2: Convert to fraction form
    478,109.18/659,735.89 = 274,104/x
  3. Step 3: Cross multiply
    478,109.18x = 659,735.89 × 274,104
  4. Step 4: Simplify right side
    478,109.18x = 180,836,245,707.30
  5. Step 5: Solve for x
    x = 180,836,245,707.30/478,109.18
  6. Step 6: Final answer
    x = 378,232.11

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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.