Finding the Fourth Proportional to 1,330,783.20, 1,836,478.80 and 757,823.58
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Solution
The fourth proportional to 1,330,783.20, 1,836,478.80 and 757,823.58 is: 1,045,795.39
Step by Step Solution
- Step 1: Write the proportion equation
1,330,783.20 : 1,836,478.80 = 757,823.58 : x - Step 2: Convert to fraction form
1,330,783.20/1,836,478.80 = 757,823.58/x - Step 3: Cross multiply
1,330,783.20x = 1,836,478.80 × 757,823.58 - Step 4: Simplify right side
1,330,783.20x = 1,391,726,938,810.10 - Step 5: Solve for x
x = 1,391,726,938,810.10/1,330,783.20 - Step 6: Final answer
x = 1,045,795.39
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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.