Finding the Fourth Proportional to 615,689.11, 849,642.68 and 343,761.17
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Solution
The fourth proportional to 615,689.11, 849,642.68 and 343,761.17 is: 474,385.79
Step by Step Solution
- Step 1: Write the proportion equation
615,689.11 : 849,642.68 = 343,761.17 : x - Step 2: Convert to fraction form
615,689.11/849,642.68 = 343,761.17/x - Step 3: Cross multiply
615,689.11x = 849,642.68 × 343,761.17 - Step 4: Simplify right side
615,689.11x = 292,074,160,039.93 - Step 5: Solve for x
x = 292,074,160,039.93/615,689.11 - Step 6: Final answer
x = 474,385.79
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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.