Finding the Fourth Proportional to 639,604.84, 958,357.48 and 218,651.08
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Solution
The fourth proportional to 639,604.84, 958,357.48 and 218,651.08 is: 327,617.75
Step by Step Solution
- Step 1: Write the proportion equation
639,604.84 : 958,357.48 = 218,651.08 : x - Step 2: Convert to fraction form
639,604.84/958,357.48 = 218,651.08/x - Step 3: Cross multiply
639,604.84x = 958,357.48 × 218,651.08 - Step 4: Simplify right side
639,604.84x = 209,545,898,028.08 - Step 5: Solve for x
x = 209,545,898,028.08/639,604.84 - Step 6: Final answer
x = 327,617.75
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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.