Finding the Fourth Proportional to 436,032.99, 654,049.80 and 120,490.20
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Solution
The fourth proportional to 436,032.99, 654,049.80 and 120,490.20 is: 180,735.39
Step by Step Solution
- Step 1: Write the proportion equation
436,032.99 : 654,049.80 = 120,490.20 : x - Step 2: Convert to fraction form
436,032.99/654,049.80 = 120,490.20/x - Step 3: Cross multiply
436,032.99x = 654,049.80 × 120,490.20 - Step 4: Simplify right side
436,032.99x = 78,806,591,211.96 - Step 5: Solve for x
x = 78,806,591,211.96/436,032.99 - Step 6: Final answer
x = 180,735.39
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1.5x scale
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.