Finding the Fourth Proportional to 1,472,553.80, 2,205,720.30 and 1,223,721.80
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Solution
The fourth proportional to 1,472,553.80, 2,205,720.30 and 1,223,721.80 is: 1,832,997.90
Step by Step Solution
- Step 1: Write the proportion equation
1,472,553.80 : 2,205,720.30 = 1,223,721.80 : x - Step 2: Convert to fraction form
1,472,553.80/2,205,720.30 = 1,223,721.80/x - Step 3: Cross multiply
1,472,553.80x = 2,205,720.30 × 1,223,721.80 - Step 4: Simplify right side
1,472,553.80x = 2,699,188,015,812.54 - Step 5: Solve for x
x = 2,699,188,015,812.54/1,472,553.80 - Step 6: Final answer
x = 1,832,997.90
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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.