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Finding the Fourth Proportional to 501,417.82, 751,419.60 and 276,879.34

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Solution

The fourth proportional to 501,417.82, 751,419.60 and 276,879.34 is: 414,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,417.82 : 751,419.60 = 276,879.34 : x
  2. Step 2: Convert to fraction form
    501,417.82/751,419.60 = 276,879.34/x
  3. Step 3: Cross multiply
    501,417.82x = 751,419.60 × 276,879.34
  4. Step 4: Simplify right side
    501,417.82x = 208,052,562,911.06
  5. Step 5: Solve for x
    x = 208,052,562,911.06/501,417.82
  6. Step 6: Final answer
    x = 414,928.54

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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.