Finding the Fourth Proportional to 1,214,088.20, 1,822,629.90 and 764,808.20
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Solution
The fourth proportional to 1,214,088.20, 1,822,629.90 and 764,808.20 is: 1,148,155.70
Step by Step Solution
- Step 1: Write the proportion equation
1,214,088.20 : 1,822,629.90 = 764,808.20 : x - Step 2: Convert to fraction form
1,214,088.20/1,822,629.90 = 764,808.20/x - Step 3: Cross multiply
1,214,088.20x = 1,822,629.90 × 764,808.20 - Step 4: Simplify right side
1,214,088.20x = 1,393,962,293,085.18 - Step 5: Solve for x
x = 1,393,962,293,085.18/1,214,088.20 - Step 6: Final answer
x = 1,148,155.70
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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.