Finding the Fourth Proportional to 1,386,304.78, 2,079,440.70 and 439,683.70
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Solution
The fourth proportional to 1,386,304.78, 2,079,440.70 and 439,683.70 is: 659,520.33
Step by Step Solution
- Step 1: Write the proportion equation
1,386,304.78 : 2,079,440.70 = 439,683.70 : x - Step 2: Convert to fraction form
1,386,304.78/2,079,440.70 = 439,683.70/x - Step 3: Cross multiply
1,386,304.78x = 2,079,440.70 × 439,683.70 - Step 4: Simplify right side
1,386,304.78x = 914,296,180,906.59 - Step 5: Solve for x
x = 914,296,180,906.59/1,386,304.78 - Step 6: Final answer
x = 659,520.33
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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.