Finding the Fourth Proportional to 4,964,403.61, 7,446,773.40 and 1,321,137.07
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Solution
The fourth proportional to 4,964,403.61, 7,446,773.40 and 1,321,137.07 is: 1,981,750.31
Step by Step Solution
- Step 1: Write the proportion equation
4,964,403.61 : 7,446,773.40 = 1,321,137.07 : x - Step 2: Convert to fraction form
4,964,403.61/7,446,773.40 = 1,321,137.07/x - Step 3: Cross multiply
4,964,403.61x = 7,446,773.40 × 1,321,137.07 - Step 4: Simplify right side
4,964,403.61x = 9,838,208,390,629.94 - Step 5: Solve for x
x = 9,838,208,390,629.94/4,964,403.61 - Step 6: Final answer
x = 1,981,750.31
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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.