Finding the Fourth Proportional to 3,138,897.02, 4,331,378.64 and 1,761,925.40
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Solution
The fourth proportional to 3,138,897.02, 4,331,378.64 and 1,761,925.40 is: 2,431,289.08
Step by Step Solution
- Step 1: Write the proportion equation
3,138,897.02 : 4,331,378.64 = 1,761,925.40 : x - Step 2: Convert to fraction form
3,138,897.02/4,331,378.64 = 1,761,925.40/x - Step 3: Cross multiply
3,138,897.02x = 4,331,378.64 × 1,761,925.40 - Step 4: Simplify right side
3,138,897.02x = 7,631,566,042,833.46 - Step 5: Solve for x
x = 7,631,566,042,833.46/3,138,897.02 - Step 6: Final answer
x = 2,431,289.08
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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.