Finding the Fourth Proportional to 678,344.60, 1,017,538.56 and 341,201.12
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Solution
The fourth proportional to 678,344.60, 1,017,538.56 and 341,201.12 is: 511,812.57
Step by Step Solution
- Step 1: Write the proportion equation
678,344.60 : 1,017,538.56 = 341,201.12 : x - Step 2: Convert to fraction form
678,344.60/1,017,538.56 = 341,201.12/x - Step 3: Cross multiply
678,344.60x = 1,017,538.56 × 341,201.12 - Step 4: Simplify right side
678,344.60x = 347,185,296,315.19 - Step 5: Solve for x
x = 347,185,296,315.19/678,344.60 - Step 6: Final answer
x = 511,812.57
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1.5x scale
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.