Finding the Fourth Proportional to 561,780.65, 775,260.80 and 303,657.07
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Solution
The fourth proportional to 561,780.65, 775,260.80 and 303,657.07 is: 419,048.65
Step by Step Solution
- Step 1: Write the proportion equation
561,780.65 : 775,260.80 = 303,657.07 : x - Step 2: Convert to fraction form
561,780.65/775,260.80 = 303,657.07/x - Step 3: Cross multiply
561,780.65x = 775,260.80 × 303,657.07 - Step 4: Simplify right side
561,780.65x = 235,413,419,557.42 - Step 5: Solve for x
x = 235,413,419,557.42/561,780.65 - Step 6: Final answer
x = 419,048.65
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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.