Finding the Fourth Proportional to 640,485.58, 959,951.52 and 470,429.05
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Solution
The fourth proportional to 640,485.58, 959,951.52 and 470,429.05 is: 705,072.99
Step by Step Solution
- Step 1: Write the proportion equation
640,485.58 : 959,951.52 = 470,429.05 : x - Step 2: Convert to fraction form
640,485.58/959,951.52 = 470,429.05/x - Step 3: Cross multiply
640,485.58x = 959,951.52 × 470,429.05 - Step 4: Simplify right side
640,485.58x = 451,589,081,599.66 - Step 5: Solve for x
x = 451,589,081,599.66/640,485.58 - Step 6: Final answer
x = 705,072.99
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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.