Finding the Fourth Proportional to 641,764.36, 885,599.68 and 351,319.74
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Solution
The fourth proportional to 641,764.36, 885,599.68 and 351,319.74 is: 484,802.01
Step by Step Solution
- Step 1: Write the proportion equation
641,764.36 : 885,599.68 = 351,319.74 : x - Step 2: Convert to fraction form
641,764.36/885,599.68 = 351,319.74/x - Step 3: Cross multiply
641,764.36x = 885,599.68 × 351,319.74 - Step 4: Simplify right side
641,764.36x = 311,128,649,321.68 - Step 5: Solve for x
x = 311,128,649,321.68/641,764.36 - Step 6: Final answer
x = 484,802.01
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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.