Home / 666,091.82-919,216.39-375,717.22

Finding the Fourth Proportional to 666,091.82, 919,216.39 and 375,717.22

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Solution

The fourth proportional to 666,091.82, 919,216.39 and 375,717.22 is: 518,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,091.82 : 919,216.39 = 375,717.22 : x
  2. Step 2: Convert to fraction form
    666,091.82/919,216.39 = 375,717.22/x
  3. Step 3: Cross multiply
    666,091.82x = 919,216.39 × 375,717.22
  4. Step 4: Simplify right side
    666,091.82x = 345,365,426,629.24
  5. Step 5: Solve for x
    x = 345,365,426,629.24/666,091.82
  6. Step 6: Final answer
    x = 518,495.22

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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.