Finding the Fourth Proportional to 407,718.80, 611,578.20 and 344,733.20
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Solution
The fourth proportional to 407,718.80, 611,578.20 and 344,733.20 is: 517,099.80
Step by Step Solution
- Step 1: Write the proportion equation
407,718.80 : 611,578.20 = 344,733.20 : x - Step 2: Convert to fraction form
407,718.80/611,578.20 = 344,733.20/x - Step 3: Cross multiply
407,718.80x = 611,578.20 × 344,733.20 - Step 4: Simplify right side
407,718.80x = 210,831,309,936.24 - Step 5: Solve for x
x = 210,831,309,936.24/407,718.80 - Step 6: Final answer
x = 517,099.80
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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.