Finding the Fourth Proportional to 419,948.84, 579,512.70 and 247,922.21
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Solution
The fourth proportional to 419,948.84, 579,512.70 and 247,922.21 is: 342,122.79
Step by Step Solution
- Step 1: Write the proportion equation
419,948.84 : 579,512.70 = 247,922.21 : x - Step 2: Convert to fraction form
419,948.84/579,512.70 = 247,922.21/x - Step 3: Cross multiply
419,948.84x = 579,512.70 × 247,922.21 - Step 4: Simplify right side
419,948.84x = 143,674,069,307.07 - Step 5: Solve for x
x = 143,674,069,307.07/419,948.84 - Step 6: Final answer
x = 342,122.79
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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.