Finding the Fourth Proportional to 766,122.94, 1,057,239.66 and 421,952.32
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Solution
The fourth proportional to 766,122.94, 1,057,239.66 and 421,952.32 is: 582,288.70
Step by Step Solution
- Step 1: Write the proportion equation
766,122.94 : 1,057,239.66 = 421,952.32 : x - Step 2: Convert to fraction form
766,122.94/1,057,239.66 = 421,952.32/x - Step 3: Cross multiply
766,122.94x = 1,057,239.66 × 421,952.32 - Step 4: Simplify right side
766,122.94x = 446,104,727,333.01 - Step 5: Solve for x
x = 446,104,727,333.01/766,122.94 - Step 6: Final answer
x = 582,288.70
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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.