Finding the Fourth Proportional to 690,095.36, 952,375.12 and 418,187.07
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Solution
The fourth proportional to 690,095.36, 952,375.12 and 418,187.07 is: 577,124.53
Step by Step Solution
- Step 1: Write the proportion equation
690,095.36 : 952,375.12 = 418,187.07 : x - Step 2: Convert to fraction form
690,095.36/952,375.12 = 418,187.07/x - Step 3: Cross multiply
690,095.36x = 952,375.12 × 418,187.07 - Step 4: Simplify right side
690,095.36x = 398,270,959,928.23 - Step 5: Solve for x
x = 398,270,959,928.23/690,095.36 - Step 6: Final answer
x = 577,124.53
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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.