Finding the Fourth Proportional to 782,643.07, 1,174,490.70 and 277,202.26
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Solution
The fourth proportional to 782,643.07, 1,174,490.70 and 277,202.26 is: 415,989.73
Step by Step Solution
- Step 1: Write the proportion equation
782,643.07 : 1,174,490.70 = 277,202.26 : x - Step 2: Convert to fraction form
782,643.07/1,174,490.70 = 277,202.26/x - Step 3: Cross multiply
782,643.07x = 1,174,490.70 × 277,202.26 - Step 4: Simplify right side
782,643.07x = 325,571,476,388.98 - Step 5: Solve for x
x = 325,571,476,388.98/782,643.07 - Step 6: Final answer
x = 415,989.73
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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.