Finding the Fourth Proportional to 680,373.11, 938,914.67 and 393,887.04
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Solution
The fourth proportional to 680,373.11, 938,914.67 and 393,887.04 is: 543,563.99
Step by Step Solution
- Step 1: Write the proportion equation
680,373.11 : 938,914.67 = 393,887.04 : x - Step 2: Convert to fraction form
680,373.11/938,914.67 = 393,887.04/x - Step 3: Cross multiply
680,373.11x = 938,914.67 × 393,887.04 - Step 4: Simplify right side
680,373.11x = 369,826,318,209.44 - Step 5: Solve for x
x = 369,826,318,209.44/680,373.11 - Step 6: Final answer
x = 543,563.99
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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.