Finding the Fourth Proportional to 2,166,571.13, 2,989,831.50 and 1,199,680.65
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Solution
The fourth proportional to 2,166,571.13, 2,989,831.50 and 1,199,680.65 is: 1,655,539.00
Step by Step Solution
- Step 1: Write the proportion equation
2,166,571.13 : 2,989,831.50 = 1,199,680.65 : x - Step 2: Convert to fraction form
2,166,571.13/2,989,831.50 = 1,199,680.65/x - Step 3: Cross multiply
2,166,571.13x = 2,989,831.50 × 1,199,680.65 - Step 4: Simplify right side
2,166,571.13x = 3,586,842,997,310.47 - Step 5: Solve for x
x = 3,586,842,997,310.47/2,166,571.13 - Step 6: Final answer
x = 1,655,539.00
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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.