Finding the Fourth Proportional to 926,636.18, 1,278,748.16 and 518,741.37
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Solution
The fourth proportional to 926,636.18, 1,278,748.16 and 518,741.37 is: 715,857.63
Step by Step Solution
- Step 1: Write the proportion equation
926,636.18 : 1,278,748.16 = 518,741.37 : x - Step 2: Convert to fraction form
926,636.18/1,278,748.16 = 518,741.37/x - Step 3: Cross multiply
926,636.18x = 1,278,748.16 × 518,741.37 - Step 4: Simplify right side
926,636.18x = 663,339,576,550.26 - Step 5: Solve for x
x = 663,339,576,550.26/926,636.18 - Step 6: Final answer
x = 715,857.63
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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.