Finding the Fourth Proportional to 1,459,887.40, 2,188,340.70 and 986,620.60
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Solution
The fourth proportional to 1,459,887.40, 2,188,340.70 and 986,620.60 is: 1,478,923.66
Step by Step Solution
- Step 1: Write the proportion equation
1,459,887.40 : 2,188,340.70 = 986,620.60 : x - Step 2: Convert to fraction form
1,459,887.40/2,188,340.70 = 986,620.60/x - Step 3: Cross multiply
1,459,887.40x = 2,188,340.70 × 986,620.60 - Step 4: Simplify right side
1,459,887.40x = 2,159,062,014,438.42 - Step 5: Solve for x
x = 2,159,062,014,438.42/1,459,887.40 - Step 6: Final answer
x = 1,478,923.66
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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.