Finding the Fourth Proportional to 2,158,229.19, 2,979,243.20 and 1,472,165.67
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Solution
The fourth proportional to 2,158,229.19, 2,979,243.20 and 1,472,165.67 is: 2,032,193.61
Step by Step Solution
- Step 1: Write the proportion equation
2,158,229.19 : 2,979,243.20 = 1,472,165.67 : x - Step 2: Convert to fraction form
2,158,229.19/2,979,243.20 = 1,472,165.67/x - Step 3: Cross multiply
2,158,229.19x = 2,979,243.20 × 1,472,165.67 - Step 4: Simplify right side
2,158,229.19x = 4,385,939,565,301.36 - Step 5: Solve for x
x = 4,385,939,565,301.36/2,158,229.19 - Step 6: Final answer
x = 2,032,193.61
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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.