Finding the Fourth Proportional to 1,439,365.30, 2,158,063.80 and 681,569.80
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Solution
The fourth proportional to 1,439,365.30, 2,158,063.80 and 681,569.80 is: 1,021,888.68
Step by Step Solution
- Step 1: Write the proportion equation
1,439,365.30 : 2,158,063.80 = 681,569.80 : x - Step 2: Convert to fraction form
1,439,365.30/2,158,063.80 = 681,569.80/x - Step 3: Cross multiply
1,439,365.30x = 2,158,063.80 × 681,569.80 - Step 4: Simplify right side
1,439,365.30x = 1,470,871,112,553.24 - Step 5: Solve for x
x = 1,470,871,112,553.24/1,439,365.30 - Step 6: Final answer
x = 1,021,888.68
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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.