Finding the Fourth Proportional to 1,909,440.18, 2,863,946.43 and 489,529.62
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Solution
The fourth proportional to 1,909,440.18, 2,863,946.43 and 489,529.62 is: 734,239.61
Step by Step Solution
- Step 1: Write the proportion equation
1,909,440.18 : 2,863,946.43 = 489,529.62 : x - Step 2: Convert to fraction form
1,909,440.18/2,863,946.43 = 489,529.62/x - Step 3: Cross multiply
1,909,440.18x = 2,863,946.43 × 489,529.62 - Step 4: Simplify right side
1,909,440.18x = 1,401,986,607,578.26 - Step 5: Solve for x
x = 1,401,986,607,578.26/1,909,440.18 - Step 6: Final answer
x = 734,239.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.