Finding the Fourth Proportional to 1,247,571.99, 1,721,647.31 and 703,706.09
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Solution
The fourth proportional to 1,247,571.99, 1,721,647.31 and 703,706.09 is: 971,113.25
Step by Step Solution
- Step 1: Write the proportion equation
1,247,571.99 : 1,721,647.31 = 703,706.09 : x - Step 2: Convert to fraction form
1,247,571.99/1,721,647.31 = 703,706.09/x - Step 3: Cross multiply
1,247,571.99x = 1,721,647.31 × 703,706.09 - Step 4: Simplify right side
1,247,571.99x = 1,211,533,684,752.35 - Step 5: Solve for x
x = 1,211,533,684,752.35/1,247,571.99 - Step 6: Final answer
x = 971,113.25
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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.