Finding the Fourth Proportional to 1,242,119.70, 1,861,850.67 and 642,477.12
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Solution
The fourth proportional to 1,242,119.70, 1,861,850.67 and 642,477.12 is: 963,028.33
Step by Step Solution
- Step 1: Write the proportion equation
1,242,119.70 : 1,861,850.67 = 642,477.12 : x - Step 2: Convert to fraction form
1,242,119.70/1,861,850.67 = 642,477.12/x - Step 3: Cross multiply
1,242,119.70x = 1,861,850.67 × 642,477.12 - Step 4: Simplify right side
1,242,119.70x = 1,196,196,456,331.67 - Step 5: Solve for x
x = 1,196,196,456,331.67/1,242,119.70 - Step 6: Final answer
x = 963,028.33
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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.