Finding the Fourth Proportional to 419,713.80, 579,188.12 and 228,723.08
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Solution
The fourth proportional to 419,713.80, 579,188.12 and 228,723.08 is: 315,628.63
Step by Step Solution
- Step 1: Write the proportion equation
419,713.80 : 579,188.12 = 228,723.08 : x - Step 2: Convert to fraction form
419,713.80/579,188.12 = 228,723.08/x - Step 3: Cross multiply
419,713.80x = 579,188.12 × 228,723.08 - Step 4: Simplify right side
419,713.80x = 132,473,690,705.81 - Step 5: Solve for x
x = 132,473,690,705.81/419,713.80 - Step 6: Final answer
x = 315,628.63
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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.