Finding the Fourth Proportional to 791,643.49, 1,188,092.17 and 412,672.84
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Solution
The fourth proportional to 791,643.49, 1,188,092.17 and 412,672.84 is: 619,336.07
Step by Step Solution
- Step 1: Write the proportion equation
791,643.49 : 1,188,092.17 = 412,672.84 : x - Step 2: Convert to fraction form
791,643.49/1,188,092.17 = 412,672.84/x - Step 3: Cross multiply
791,643.49x = 1,188,092.17 × 412,672.84 - Step 4: Simplify right side
791,643.49x = 490,293,369,975.66 - Step 5: Solve for x
x = 490,293,369,975.66/791,643.49 - Step 6: Final answer
x = 619,336.07
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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.