Finding the Fourth Proportional to 1,512,213.40, 2,268,320.10 and 756,386.20
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Solution
The fourth proportional to 1,512,213.40, 2,268,320.10 and 756,386.20 is: 1,134,579.30
Step by Step Solution
- Step 1: Write the proportion equation
1,512,213.40 : 2,268,320.10 = 756,386.20 : x - Step 2: Convert to fraction form
1,512,213.40/2,268,320.10 = 756,386.20/x - Step 3: Cross multiply
1,512,213.40x = 2,268,320.10 × 756,386.20 - Step 4: Simplify right side
1,512,213.40x = 1,715,726,020,822.62 - Step 5: Solve for x
x = 1,715,726,020,822.62/1,512,213.40 - Step 6: Final answer
x = 1,134,579.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.