Finding the Fourth Proportional to 744,869.68, 1,027,941.60 and 405,359.44
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Solution
The fourth proportional to 744,869.68, 1,027,941.60 and 405,359.44 is: 559,407.70
Step by Step Solution
- Step 1: Write the proportion equation
744,869.68 : 1,027,941.60 = 405,359.44 : x - Step 2: Convert to fraction form
744,869.68/1,027,941.60 = 405,359.44/x - Step 3: Cross multiply
744,869.68x = 1,027,941.60 × 405,359.44 - Step 4: Simplify right side
744,869.68x = 416,685,831,328.70 - Step 5: Solve for x
x = 416,685,831,328.70/744,869.68 - Step 6: Final answer
x = 559,407.70
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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.