Home / 481,913.09-665,057.22-290,889.17

Finding the Fourth Proportional to 481,913.09, 665,057.22 and 290,889.17

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Solution

The fourth proportional to 481,913.09, 665,057.22 and 290,889.17 is: 401,437.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,913.09 : 665,057.22 = 290,889.17 : x
  2. Step 2: Convert to fraction form
    481,913.09/665,057.22 = 290,889.17/x
  3. Step 3: Cross multiply
    481,913.09x = 665,057.22 × 290,889.17
  4. Step 4: Simplify right side
    481,913.09x = 193,457,942,728.31
  5. Step 5: Solve for x
    x = 193,457,942,728.31/481,913.09
  6. Step 6: Final answer
    x = 401,437.41

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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.