Finding the Fourth Proportional to 419,660.75, 579,132.56 and 228,674.14
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Solution
The fourth proportional to 419,660.75, 579,132.56 and 228,674.14 is: 315,570.70
Step by Step Solution
- Step 1: Write the proportion equation
419,660.75 : 579,132.56 = 228,674.14 : x - Step 2: Convert to fraction form
419,660.75/579,132.56 = 228,674.14/x - Step 3: Cross multiply
419,660.75x = 579,132.56 × 228,674.14 - Step 4: Simplify right side
419,660.75x = 132,432,636,064.97 - Step 5: Solve for x
x = 132,432,636,064.97/419,660.75 - Step 6: Final answer
x = 315,570.70
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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.