Finding the Fourth Proportional to 1,311,045.13, 1,809,276.11 and 738,105.81
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Solution
The fourth proportional to 1,311,045.13, 1,809,276.11 and 738,105.81 is: 1,018,605.06
Step by Step Solution
- Step 1: Write the proportion equation
1,311,045.13 : 1,809,276.11 = 738,105.81 : x - Step 2: Convert to fraction form
1,311,045.13/1,809,276.11 = 738,105.81/x - Step 3: Cross multiply
1,311,045.13x = 1,809,276.11 × 738,105.81 - Step 4: Simplify right side
1,311,045.13x = 1,335,437,208,685.20 - Step 5: Solve for x
x = 1,335,437,208,685.20/1,311,045.13 - Step 6: Final answer
x = 1,018,605.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.