Finding the Fourth Proportional to 749,121.50, 1,033,787.67 and 409,589.75
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Solution
The fourth proportional to 749,121.50, 1,033,787.67 and 409,589.75 is: 565,233.86
Step by Step Solution
- Step 1: Write the proportion equation
749,121.50 : 1,033,787.67 = 409,589.75 : x - Step 2: Convert to fraction form
749,121.50/1,033,787.67 = 409,589.75/x - Step 3: Cross multiply
749,121.50x = 1,033,787.67 × 409,589.75 - Step 4: Simplify right side
749,121.50x = 423,428,833,308.38 - Step 5: Solve for x
x = 423,428,833,308.38/749,121.50 - Step 6: Final answer
x = 565,233.86
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1.5x scale
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.