Finding the Fourth Proportional to 499,684.74, 689,582.79 and 284,790.12
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Solution
The fourth proportional to 499,684.74, 689,582.79 and 284,790.12 is: 393,020.54
Step by Step Solution
- Step 1: Write the proportion equation
499,684.74 : 689,582.79 = 284,790.12 : x - Step 2: Convert to fraction form
499,684.74/689,582.79 = 284,790.12/x - Step 3: Cross multiply
499,684.74x = 689,582.79 × 284,790.12 - Step 4: Simplify right side
499,684.74x = 196,386,365,514.04 - Step 5: Solve for x
x = 196,386,365,514.04/499,684.74 - Step 6: Final answer
x = 393,020.54
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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.