Finding the Fourth Proportional to 678,718.48, 1,018,062.17 and 341,668.63
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Solution
The fourth proportional to 678,718.48, 1,018,062.17 and 341,668.63 is: 512,495.12
Step by Step Solution
- Step 1: Write the proportion equation
678,718.48 : 1,018,062.17 = 341,668.63 : x - Step 2: Convert to fraction form
678,718.48/1,018,062.17 = 341,668.63/x - Step 3: Cross multiply
678,718.48x = 1,018,062.17 × 341,668.63 - Step 4: Simplify right side
678,718.48x = 347,839,907,724.22 - Step 5: Solve for x
x = 347,839,907,724.22/678,718.48 - Step 6: Final answer
x = 512,495.12
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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.