Finding the Fourth Proportional to 675,241.06, 931,728.98 and 388,705.56
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Solution
The fourth proportional to 675,241.06, 931,728.98 and 388,705.56 is: 536,353.99
Step by Step Solution
- Step 1: Write the proportion equation
675,241.06 : 931,728.98 = 388,705.56 : x - Step 2: Convert to fraction form
675,241.06/931,728.98 = 388,705.56/x - Step 3: Cross multiply
675,241.06x = 931,728.98 × 388,705.56 - Step 4: Simplify right side
675,241.06x = 362,168,234,939.13 - Step 5: Solve for x
x = 362,168,234,939.13/675,241.06 - Step 6: Final answer
x = 536,353.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.