Finding the Fourth Proportional to 2,138,381.94, 2,950,942.39 and 1,158,302.19
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Solution
The fourth proportional to 2,138,381.94, 2,950,942.39 and 1,158,302.19 is: 1,598,443.65
Step by Step Solution
- Step 1: Write the proportion equation
2,138,381.94 : 2,950,942.39 = 1,158,302.19 : x - Step 2: Convert to fraction form
2,138,381.94/2,950,942.39 = 1,158,302.19/x - Step 3: Cross multiply
2,138,381.94x = 2,950,942.39 × 1,158,302.19 - Step 4: Simplify right side
2,138,381.94x = 3,418,083,041,071.11 - Step 5: Solve for x
x = 3,418,083,041,071.11/2,138,381.94 - Step 6: Final answer
x = 1,598,443.65
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1.5x scale
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.