Finding the Fourth Proportional to 663,680.07, 915,879.41 and 361,874.07
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Solution
The fourth proportional to 663,680.07, 915,879.41 and 361,874.07 is: 499,386.71
Step by Step Solution
- Step 1: Write the proportion equation
663,680.07 : 915,879.41 = 361,874.07 : x - Step 2: Convert to fraction form
663,680.07/915,879.41 = 361,874.07/x - Step 3: Cross multiply
663,680.07x = 915,879.41 × 361,874.07 - Step 4: Simplify right side
663,680.07x = 331,433,007,916.53 - Step 5: Solve for x
x = 331,433,007,916.53/663,680.07 - Step 6: Final answer
x = 499,386.71
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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.