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Finding the Fourth Proportional to 445,290.26, 666,358.69 and 276,889.89

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Solution

The fourth proportional to 445,290.26, 666,358.69 and 276,889.89 is: 414,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,290.26 : 666,358.69 = 276,889.89 : x
  2. Step 2: Convert to fraction form
    445,290.26/666,358.69 = 276,889.89/x
  3. Step 3: Cross multiply
    445,290.26x = 666,358.69 × 276,889.89
  4. Step 4: Simplify right side
    445,290.26x = 184,507,980,350.63
  5. Step 5: Solve for x
    x = 184,507,980,350.63/445,290.26
  6. Step 6: Final answer
    x = 414,354.41

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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.