Finding the Fourth Proportional to 1,205,247.40, 1,663,236.78 and 661,392.28
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Solution
The fourth proportional to 1,205,247.40, 1,663,236.78 and 661,392.28 is: 912,718.80
Step by Step Solution
- Step 1: Write the proportion equation
1,205,247.40 : 1,663,236.78 = 661,392.28 : x - Step 2: Convert to fraction form
1,205,247.40/1,663,236.78 = 661,392.28/x - Step 3: Cross multiply
1,205,247.40x = 1,663,236.78 × 661,392.28 - Step 4: Simplify right side
1,205,247.40x = 1,100,051,966,104.06 - Step 5: Solve for x
x = 1,100,051,966,104.06/1,205,247.40 - Step 6: Final answer
x = 912,718.80
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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.