Finding the Fourth Proportional to 677,623.73, 935,150.06 and 405,638.99
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Solution
The fourth proportional to 677,623.73, 935,150.06 and 405,638.99 is: 559,799.36
Step by Step Solution
- Step 1: Write the proportion equation
677,623.73 : 935,150.06 = 405,638.99 : x - Step 2: Convert to fraction form
677,623.73/935,150.06 = 405,638.99/x - Step 3: Cross multiply
677,623.73x = 935,150.06 × 405,638.99 - Step 4: Simplify right side
677,623.73x = 379,333,325,682.00 - Step 5: Solve for x
x = 379,333,325,682.00/677,623.73 - Step 6: Final answer
x = 559,799.36
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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.