Home / 666,138.26-919,269.22-375,748.86

Finding the Fourth Proportional to 666,138.26, 919,269.22 and 375,748.86

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Solution

The fourth proportional to 666,138.26, 919,269.22 and 375,748.86 is: 518,532.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,138.26 : 919,269.22 = 375,748.86 : x
  2. Step 2: Convert to fraction form
    666,138.26/919,269.22 = 375,748.86/x
  3. Step 3: Cross multiply
    666,138.26x = 919,269.22 × 375,748.86
  4. Step 4: Simplify right side
    666,138.26x = 345,414,361,448.09
  5. Step 5: Solve for x
    x = 345,414,361,448.09/666,138.26
  6. Step 6: Final answer
    x = 518,532.54

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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.