Home / 420,004.98-629,810.44-153,579.18

Finding the Fourth Proportional to 420,004.98, 629,810.44 and 153,579.18

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Solution

The fourth proportional to 420,004.98, 629,810.44 and 153,579.18 is: 230,296.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,004.98 : 629,810.44 = 153,579.18 : x
  2. Step 2: Convert to fraction form
    420,004.98/629,810.44 = 153,579.18/x
  3. Step 3: Cross multiply
    420,004.98x = 629,810.44 × 153,579.18
  4. Step 4: Simplify right side
    420,004.98x = 96,725,770,930.64
  5. Step 5: Solve for x
    x = 96,725,770,930.64/420,004.98
  6. Step 6: Final answer
    x = 230,296.72

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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.