Finding the Fourth Proportional to 1,405,351.80, 1,939,311.99 and 824,494.19
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Solution
The fourth proportional to 1,405,351.80, 1,939,311.99 and 824,494.19 is: 1,137,758.86
Step by Step Solution
- Step 1: Write the proportion equation
1,405,351.80 : 1,939,311.99 = 824,494.19 : x - Step 2: Convert to fraction form
1,405,351.80/1,939,311.99 = 824,494.19/x - Step 3: Cross multiply
1,405,351.80x = 1,939,311.99 × 824,494.19 - Step 4: Simplify right side
1,405,351.80x = 1,598,951,458,655.78 - Step 5: Solve for x
x = 1,598,951,458,655.78/1,405,351.80 - Step 6: Final answer
x = 1,137,758.86
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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.