Finding the Fourth Proportional to 694,293.06, 958,213.01 and 388,386.44
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Solution
The fourth proportional to 694,293.06, 958,213.01 and 388,386.44 is: 536,022.84
Step by Step Solution
- Step 1: Write the proportion equation
694,293.06 : 958,213.01 = 388,386.44 : x - Step 2: Convert to fraction form
694,293.06/958,213.01 = 388,386.44/x - Step 3: Cross multiply
694,293.06x = 958,213.01 × 388,386.44 - Step 4: Simplify right side
694,293.06x = 372,156,935,895.49 - Step 5: Solve for x
x = 372,156,935,895.49/694,293.06 - Step 6: Final answer
x = 536,022.84
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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.