Finding the Fourth Proportional to 1,214,192.70, 1,821,289.05 and 372,635.10
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Solution
The fourth proportional to 1,214,192.70, 1,821,289.05 and 372,635.10 is: 558,952.65
Step by Step Solution
- Step 1: Write the proportion equation
1,214,192.70 : 1,821,289.05 = 372,635.10 : x - Step 2: Convert to fraction form
1,214,192.70/1,821,289.05 = 372,635.10/x - Step 3: Cross multiply
1,214,192.70x = 1,821,289.05 × 372,635.10 - Step 4: Simplify right side
1,214,192.70x = 678,676,227,275.66 - Step 5: Solve for x
x = 678,676,227,275.66/1,214,192.70 - Step 6: Final answer
x = 558,952.65
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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.