Finding the Fourth Proportional to 419,677.99, 579,156.36 and 228,691.38
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Solution
The fourth proportional to 419,677.99, 579,156.36 and 228,691.38 is: 315,594.51
Step by Step Solution
- Step 1: Write the proportion equation
419,677.99 : 579,156.36 = 228,691.38 : x - Step 2: Convert to fraction form
419,677.99/579,156.36 = 228,691.38/x - Step 3: Cross multiply
419,677.99x = 579,156.36 × 228,691.38 - Step 4: Simplify right side
419,677.99x = 132,448,067,204.18 - Step 5: Solve for x
x = 132,448,067,204.18/419,677.99 - Step 6: Final answer
x = 315,594.51
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1.5x scale
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.