Finding the Fourth Proportional to 4,231,243.80, 6,346,865.70 and 1,239,427.80
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Solution
The fourth proportional to 4,231,243.80, 6,346,865.70 and 1,239,427.80 is: 1,859,141.70
Step by Step Solution
- Step 1: Write the proportion equation
4,231,243.80 : 6,346,865.70 = 1,239,427.80 : x - Step 2: Convert to fraction form
4,231,243.80/6,346,865.70 = 1,239,427.80/x - Step 3: Cross multiply
4,231,243.80x = 6,346,865.70 × 1,239,427.80 - Step 4: Simplify right side
4,231,243.80x = 7,866,481,791,446.46 - Step 5: Solve for x
x = 7,866,481,791,446.46/4,231,243.80 - Step 6: Final answer
x = 1,859,141.70
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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.