Finding the Fourth Proportional to 485,400.09, 727,528.26 and 218,848.53
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Solution
The fourth proportional to 485,400.09, 727,528.26 and 218,848.53 is: 328,014.95
Step by Step Solution
- Step 1: Write the proportion equation
485,400.09 : 727,528.26 = 218,848.53 : x - Step 2: Convert to fraction form
485,400.09/727,528.26 = 218,848.53/x - Step 3: Cross multiply
485,400.09x = 727,528.26 × 218,848.53 - Step 4: Simplify right side
485,400.09x = 159,218,486,596.82 - Step 5: Solve for x
x = 159,218,486,596.82/485,400.09 - Step 6: Final answer
x = 328,014.95
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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.