Finding the Fourth Proportional to 1,215,689.36, 1,821,904.04 and 946,142.98
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Solution
The fourth proportional to 1,215,689.36, 1,821,904.04 and 946,142.98 is: 1,417,945.88
Step by Step Solution
- Step 1: Write the proportion equation
1,215,689.36 : 1,821,904.04 = 946,142.98 : x - Step 2: Convert to fraction form
1,215,689.36/1,821,904.04 = 946,142.98/x - Step 3: Cross multiply
1,215,689.36x = 1,821,904.04 × 946,142.98 - Step 4: Simplify right side
1,215,689.36x = 1,723,781,715,490.24 - Step 5: Solve for x
x = 1,723,781,715,490.24/1,215,689.36 - Step 6: Final answer
x = 1,417,945.88
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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.