Finding the Fourth Proportional to 379,324.02, 523,477.71 and 209,569.08
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Solution
The fourth proportional to 379,324.02, 523,477.71 and 209,569.08 is: 289,211.17
Step by Step Solution
- Step 1: Write the proportion equation
379,324.02 : 523,477.71 = 209,569.08 : x - Step 2: Convert to fraction form
379,324.02/523,477.71 = 209,569.08/x - Step 3: Cross multiply
379,324.02x = 523,477.71 × 209,569.08 - Step 4: Simplify right side
379,324.02x = 109,704,742,085.21 - Step 5: Solve for x
x = 109,704,742,085.21/379,324.02 - Step 6: Final answer
x = 289,211.17
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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.