Finding the Fourth Proportional to 386,695.44, 580,000.14 and 120,433.68
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Solution
The fourth proportional to 386,695.44, 580,000.14 and 120,433.68 is: 180,637.12
Step by Step Solution
- Step 1: Write the proportion equation
386,695.44 : 580,000.14 = 120,433.68 : x - Step 2: Convert to fraction form
386,695.44/580,000.14 = 120,433.68/x - Step 3: Cross multiply
386,695.44x = 580,000.14 × 120,433.68 - Step 4: Simplify right side
386,695.44x = 69,851,551,260.72 - Step 5: Solve for x
x = 69,851,551,260.72/386,695.44 - Step 6: Final answer
x = 180,637.12
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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.