Finding the Fourth Proportional to 2,195,995.28, 3,030,472.80 and 1,229,125.31
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Solution
The fourth proportional to 2,195,995.28, 3,030,472.80 and 1,229,125.31 is: 1,696,192.54
Step by Step Solution
- Step 1: Write the proportion equation
2,195,995.28 : 3,030,472.80 = 1,229,125.31 : x - Step 2: Convert to fraction form
2,195,995.28/3,030,472.80 = 1,229,125.31/x - Step 3: Cross multiply
2,195,995.28x = 3,030,472.80 × 1,229,125.31 - Step 4: Simplify right side
2,195,995.28x = 3,724,830,804,594.20 - Step 5: Solve for x
x = 3,724,830,804,594.20/2,195,995.28 - Step 6: Final answer
x = 1,696,192.54
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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.