Finding the Fourth Proportional to 613,910.13, 921,007.65 and 193,175.07
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Solution
The fourth proportional to 613,910.13, 921,007.65 and 193,175.07 is: 289,807.43
Step by Step Solution
- Step 1: Write the proportion equation
613,910.13 : 921,007.65 = 193,175.07 : x - Step 2: Convert to fraction form
613,910.13/921,007.65 = 193,175.07/x - Step 3: Cross multiply
613,910.13x = 921,007.65 × 193,175.07 - Step 4: Simplify right side
613,910.13x = 177,915,717,259.29 - Step 5: Solve for x
x = 177,915,717,259.29/613,910.13 - Step 6: Final answer
x = 289,807.43
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.