Finding the Fourth Proportional to 3,989,571.84, 5,980,366.96 and 1,430,090.56
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Solution
The fourth proportional to 3,989,571.84, 5,980,366.96 and 1,430,090.56 is: 2,143,705.31
Step by Step Solution
- Step 1: Write the proportion equation
3,989,571.84 : 5,980,366.96 = 1,430,090.56 : x - Step 2: Convert to fraction form
3,989,571.84/5,980,366.96 = 1,430,090.56/x - Step 3: Cross multiply
3,989,571.84x = 5,980,366.96 × 1,430,090.56 - Step 4: Simplify right side
3,989,571.84x = 8,552,466,334,831.90 - Step 5: Solve for x
x = 8,552,466,334,831.90/3,989,571.84 - Step 6: Final answer
x = 2,143,705.31
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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.