Finding the Fourth Proportional to 1,124,190.09, 1,551,343.05 and 640,910.88
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Solution
The fourth proportional to 1,124,190.09, 1,551,343.05 and 640,910.88 is: 884,434.62
Step by Step Solution
- Step 1: Write the proportion equation
1,124,190.09 : 1,551,343.05 = 640,910.88 : x - Step 2: Convert to fraction form
1,124,190.09/1,551,343.05 = 640,910.88/x - Step 3: Cross multiply
1,124,190.09x = 1,551,343.05 × 640,910.88 - Step 4: Simplify right side
1,124,190.09x = 994,272,639,357.38 - Step 5: Solve for x
x = 994,272,639,357.38/1,124,190.09 - Step 6: Final answer
x = 884,434.62
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1.5x scale
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.