Finding the Fourth Proportional to 419,214.44, 578,528.04 and 228,231.08
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Solution
The fourth proportional to 419,214.44, 578,528.04 and 228,231.08 is: 314,965.48
Step by Step Solution
- Step 1: Write the proportion equation
419,214.44 : 578,528.04 = 228,231.08 : x - Step 2: Convert to fraction form
419,214.44/578,528.04 = 228,231.08/x - Step 3: Cross multiply
419,214.44x = 578,528.04 × 228,231.08 - Step 4: Simplify right side
419,214.44x = 132,038,079,379.48 - Step 5: Solve for x
x = 132,038,079,379.48/419,214.44 - Step 6: Final answer
x = 314,965.48
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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.