Home / 458,696.49-686,997.19-218,979.01

Finding the Fourth Proportional to 458,696.49, 686,997.19 and 218,979.01

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Solution

The fourth proportional to 458,696.49, 686,997.19 and 218,979.01 is: 327,968.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,696.49 : 686,997.19 = 218,979.01 : x
  2. Step 2: Convert to fraction form
    458,696.49/686,997.19 = 218,979.01/x
  3. Step 3: Cross multiply
    458,696.49x = 686,997.19 × 218,979.01
  4. Step 4: Simplify right side
    458,696.49x = 150,437,964,538.98
  5. Step 5: Solve for x
    x = 150,437,964,538.98/458,696.49
  6. Step 6: Final answer
    x = 327,968.42

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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.