Finding the Fourth Proportional to 427,322.19, 641,054.57 and 190,655.99
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Solution
The fourth proportional to 427,322.19, 641,054.57 and 190,655.99 is: 286,015.78
Step by Step Solution
- Step 1: Write the proportion equation
427,322.19 : 641,054.57 = 190,655.99 : x - Step 2: Convert to fraction form
427,322.19/641,054.57 = 190,655.99/x - Step 3: Cross multiply
427,322.19x = 641,054.57 × 190,655.99 - Step 4: Simplify right side
427,322.19x = 122,220,889,528.82 - Step 5: Solve for x
x = 122,220,889,528.82/427,322.19 - Step 6: Final answer
x = 286,015.78
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.