Finding the Fourth Proportional to 1,678,574.40, 2,518,911.36 and 681,302.40
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Solution
The fourth proportional to 1,678,574.40, 2,518,911.36 and 681,302.40 is: 1,022,379.68
Step by Step Solution
- Step 1: Write the proportion equation
1,678,574.40 : 2,518,911.36 = 681,302.40 : x - Step 2: Convert to fraction form
1,678,574.40/2,518,911.36 = 681,302.40/x - Step 3: Cross multiply
1,678,574.40x = 2,518,911.36 × 681,302.40 - Step 4: Simplify right side
1,678,574.40x = 1,716,140,354,955.26 - Step 5: Solve for x
x = 1,716,140,354,955.26/1,678,574.40 - Step 6: Final answer
x = 1,022,379.68
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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.