Finding the Fourth Proportional to 1,424,620.48, 1,965,915.36 and 780,028.96
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Solution
The fourth proportional to 1,424,620.48, 1,965,915.36 and 780,028.96 is: 1,076,406.62
Step by Step Solution
- Step 1: Write the proportion equation
1,424,620.48 : 1,965,915.36 = 780,028.96 : x - Step 2: Convert to fraction form
1,424,620.48/1,965,915.36 = 780,028.96/x - Step 3: Cross multiply
1,424,620.48x = 1,965,915.36 × 780,028.96 - Step 4: Simplify right side
1,424,620.48x = 1,533,470,913,708.83 - Step 5: Solve for x
x = 1,533,470,913,708.83/1,424,620.48 - Step 6: Final answer
x = 1,076,406.62
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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.