Finding the Fourth Proportional to 1,330,778.70, 1,836,472.64 and 757,818.99
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Solution
The fourth proportional to 1,330,778.70, 1,836,472.64 and 757,818.99 is: 1,045,789.08
Step by Step Solution
- Step 1: Write the proportion equation
1,330,778.70 : 1,836,472.64 = 757,818.99 : x - Step 2: Convert to fraction form
1,330,778.70/1,836,472.64 = 757,818.99/x - Step 3: Cross multiply
1,330,778.70x = 1,836,472.64 × 757,818.99 - Step 4: Simplify right side
1,330,778.70x = 1,391,713,837,418.34 - Step 5: Solve for x
x = 1,391,713,837,418.34/1,330,778.70 - Step 6: Final answer
x = 1,045,789.08
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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.