Finding the Fourth Proportional to 1,128,797.20, 1,557,728.32 and 632,082.08
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Solution
The fourth proportional to 1,128,797.20, 1,557,728.32 and 632,082.08 is: 872,266.66
Step by Step Solution
- Step 1: Write the proportion equation
1,128,797.20 : 1,557,728.32 = 632,082.08 : x - Step 2: Convert to fraction form
1,128,797.20/1,557,728.32 = 632,082.08/x - Step 3: Cross multiply
1,128,797.20x = 1,557,728.32 × 632,082.08 - Step 4: Simplify right side
1,128,797.20x = 984,612,161,488.63 - Step 5: Solve for x
x = 984,612,161,488.63/1,128,797.20 - Step 6: Final answer
x = 872,266.66
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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.