Finding the Fourth Proportional to 386,643.24, 579,731.91 and 173,372.55
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Solution
The fourth proportional to 386,643.24, 579,731.91 and 173,372.55 is: 259,954.37
Step by Step Solution
- Step 1: Write the proportion equation
386,643.24 : 579,731.91 = 173,372.55 : x - Step 2: Convert to fraction form
386,643.24/579,731.91 = 173,372.55/x - Step 3: Cross multiply
386,643.24x = 579,731.91 × 173,372.55 - Step 4: Simplify right side
386,643.24x = 100,509,599,553.07 - Step 5: Solve for x
x = 100,509,599,553.07/386,643.24 - Step 6: Final answer
x = 259,954.37
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.