Home / 430,093.98-641,918.61-422,999.01

Finding the Fourth Proportional to 430,093.98, 641,918.61 and 422,999.01

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Solution

The fourth proportional to 430,093.98, 641,918.61 and 422,999.01 is: 631,329.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,093.98 : 641,918.61 = 422,999.01 : x
  2. Step 2: Convert to fraction form
    430,093.98/641,918.61 = 422,999.01/x
  3. Step 3: Cross multiply
    430,093.98x = 641,918.61 × 422,999.01
  4. Step 4: Simplify right side
    430,093.98x = 271,530,936,530.58
  5. Step 5: Solve for x
    x = 271,530,936,530.58/430,093.98
  6. Step 6: Final answer
    x = 631,329.31

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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.