Finding the Fourth Proportional to 436,478.88, 654,745.99 and 136,971.28
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Solution
The fourth proportional to 436,478.88, 654,745.99 and 136,971.28 is: 205,465.60
Step by Step Solution
- Step 1: Write the proportion equation
436,478.88 : 654,745.99 = 136,971.28 : x - Step 2: Convert to fraction form
436,478.88/654,745.99 = 136,971.28/x - Step 3: Cross multiply
436,478.88x = 654,745.99 × 136,971.28 - Step 4: Simplify right side
436,478.88x = 89,681,396,325.17 - Step 5: Solve for x
x = 89,681,396,325.17/436,478.88 - Step 6: Final answer
x = 205,465.60
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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.