Finding the Fourth Proportional to 619,821.63, 927,739.26 and 319,893.66
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Solution
The fourth proportional to 619,821.63, 927,739.26 and 319,893.66 is: 478,811.80
Step by Step Solution
- Step 1: Write the proportion equation
619,821.63 : 927,739.26 = 319,893.66 : x - Step 2: Convert to fraction form
619,821.63/927,739.26 = 319,893.66/x - Step 3: Cross multiply
619,821.63x = 927,739.26 × 319,893.66 - Step 4: Simplify right side
619,821.63x = 296,777,907,407.09 - Step 5: Solve for x
x = 296,777,907,407.09/619,821.63 - Step 6: Final answer
x = 478,811.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.