Finding the Fourth Proportional to 419,677.49, 579,155.67 and 228,690.88
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Solution
The fourth proportional to 419,677.49, 579,155.67 and 228,690.88 is: 315,593.81
Step by Step Solution
- Step 1: Write the proportion equation
419,677.49 : 579,155.67 = 228,690.88 : x - Step 2: Convert to fraction form
419,677.49/579,155.67 = 228,690.88/x - Step 3: Cross multiply
419,677.49x = 579,155.67 × 228,690.88 - Step 4: Simplify right side
419,677.49x = 132,447,618,381.40 - Step 5: Solve for x
x = 132,447,618,381.40/419,677.49 - Step 6: Final answer
x = 315,593.81
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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.