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Finding the Fourth Proportional to 445,437.26, 665,709.17 and 325,745.48

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Solution

The fourth proportional to 445,437.26, 665,709.17 and 325,745.48 is: 486,828.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,437.26 : 665,709.17 = 325,745.48 : x
  2. Step 2: Convert to fraction form
    445,437.26/665,709.17 = 325,745.48/x
  3. Step 3: Cross multiply
    445,437.26x = 665,709.17 × 325,745.48
  4. Step 4: Simplify right side
    445,437.26x = 216,851,748,164.78
  5. Step 5: Solve for x
    x = 216,851,748,164.78/445,437.26
  6. Step 6: Final answer
    x = 486,828.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.