Finding the Fourth Proportional to 1,117,943.40, 1,542,711.06 and 608,644.68
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Solution
The fourth proportional to 1,117,943.40, 1,542,711.06 and 608,644.68 is: 839,901.98
Step by Step Solution
- Step 1: Write the proportion equation
1,117,943.40 : 1,542,711.06 = 608,644.68 : x - Step 2: Convert to fraction form
1,117,943.40/1,542,711.06 = 608,644.68/x - Step 3: Cross multiply
1,117,943.40x = 1,542,711.06 × 608,644.68 - Step 4: Simplify right side
1,117,943.40x = 938,962,879,446.16 - Step 5: Solve for x
x = 938,962,879,446.16/1,117,943.40 - Step 6: Final answer
x = 839,901.98
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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.