Finding the Fourth Proportional to 641,159.64, 884,800.94 and 354,699.09
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Solution
The fourth proportional to 641,159.64, 884,800.94 and 354,699.09 is: 489,485.09
Step by Step Solution
- Step 1: Write the proportion equation
641,159.64 : 884,800.94 = 354,699.09 : x - Step 2: Convert to fraction form
641,159.64/884,800.94 = 354,699.09/x - Step 3: Cross multiply
641,159.64x = 884,800.94 × 354,699.09 - Step 4: Simplify right side
641,159.64x = 313,838,086,475.65 - Step 5: Solve for x
x = 313,838,086,475.65/641,159.64 - Step 6: Final answer
x = 489,485.09
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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.