Finding the Fourth Proportional to 428,093.80, 591,166.55 and 320,476.99
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Solution
The fourth proportional to 428,093.80, 591,166.55 and 320,476.99 is: 442,555.53
Step by Step Solution
- Step 1: Write the proportion equation
428,093.80 : 591,166.55 = 320,476.99 : x - Step 2: Convert to fraction form
428,093.80/591,166.55 = 320,476.99/x - Step 3: Cross multiply
428,093.80x = 591,166.55 × 320,476.99 - Step 4: Simplify right side
428,093.80x = 189,455,276,532.69 - Step 5: Solve for x
x = 189,455,276,532.69/428,093.80 - Step 6: Final answer
x = 442,555.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.