Finding the Fourth Proportional to 3,921,867.95, 5,883,140.79 and 1,081,980.09
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Solution
The fourth proportional to 3,921,867.95, 5,883,140.79 and 1,081,980.09 is: 1,623,063.62
Step by Step Solution
- Step 1: Write the proportion equation
3,921,867.95 : 5,883,140.79 = 1,081,980.09 : x - Step 2: Convert to fraction form
3,921,867.95/5,883,140.79 = 1,081,980.09/x - Step 3: Cross multiply
3,921,867.95x = 5,883,140.79 × 1,081,980.09 - Step 4: Simplify right side
3,921,867.95x = 6,365,441,201,446.87 - Step 5: Solve for x
x = 6,365,441,201,446.87/3,921,867.95 - Step 6: Final answer
x = 1,623,063.62
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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.