Finding the Fourth Proportional to 785,644.72, 1,177,553.09 and 448,921.44
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Solution
The fourth proportional to 785,644.72, 1,177,553.09 and 448,921.44 is: 672,859.90
Step by Step Solution
- Step 1: Write the proportion equation
785,644.72 : 1,177,553.09 = 448,921.44 : x - Step 2: Convert to fraction form
785,644.72/1,177,553.09 = 448,921.44/x - Step 3: Cross multiply
785,644.72x = 1,177,553.09 × 448,921.44 - Step 4: Simplify right side
785,644.72x = 528,628,829,961.55 - Step 5: Solve for x
x = 528,628,829,961.55/785,644.72 - Step 6: Final answer
x = 672,859.90
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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.