Finding the Fourth Proportional to 744,690.16, 1,027,682.94 and 405,158.68
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Solution
The fourth proportional to 744,690.16, 1,027,682.94 and 405,158.68 is: 559,124.70
Step by Step Solution
- Step 1: Write the proportion equation
744,690.16 : 1,027,682.94 = 405,158.68 : x - Step 2: Convert to fraction form
744,690.16/1,027,682.94 = 405,158.68/x - Step 3: Cross multiply
744,690.16x = 1,027,682.94 × 405,158.68 - Step 4: Simplify right side
744,690.16x = 416,374,663,428.92 - Step 5: Solve for x
x = 416,374,663,428.92/744,690.16 - Step 6: Final answer
x = 559,124.70
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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.