Finding the Fourth Proportional to 420,616.62, 580,428.97 and 229,593.11
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Solution
The fourth proportional to 420,616.62, 580,428.97 and 229,593.11 is: 316,826.49
Step by Step Solution
- Step 1: Write the proportion equation
420,616.62 : 580,428.97 = 229,593.11 : x - Step 2: Convert to fraction form
420,616.62/580,428.97 = 229,593.11/x - Step 3: Cross multiply
420,616.62x = 580,428.97 × 229,593.11 - Step 4: Simplify right side
420,616.62x = 133,262,488,880.27 - Step 5: Solve for x
x = 133,262,488,880.27/420,616.62 - Step 6: Final answer
x = 316,826.49
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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.