Finding the Fourth Proportional to 419,734.80, 579,217.14 and 228,744.06
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Solution
The fourth proportional to 419,734.80, 579,217.14 and 228,744.06 is: 315,657.60
Step by Step Solution
- Step 1: Write the proportion equation
419,734.80 : 579,217.14 = 228,744.06 : x - Step 2: Convert to fraction form
419,734.80/579,217.14 = 228,744.06/x - Step 3: Cross multiply
419,734.80x = 579,217.14 × 228,744.06 - Step 4: Simplify right side
419,734.80x = 132,492,480,225.19 - Step 5: Solve for x
x = 132,492,480,225.19/419,734.80 - Step 6: Final answer
x = 315,657.60
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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.