Finding the Fourth Proportional to 642,149.76, 886,157.64 and 370,218.12
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Solution
The fourth proportional to 642,149.76, 886,157.64 and 370,218.12 is: 510,895.80
Step by Step Solution
- Step 1: Write the proportion equation
642,149.76 : 886,157.64 = 370,218.12 : x - Step 2: Convert to fraction form
642,149.76/886,157.64 = 370,218.12/x - Step 3: Cross multiply
642,149.76x = 886,157.64 × 370,218.12 - Step 4: Simplify right side
642,149.76x = 328,071,615,504.44 - Step 5: Solve for x
x = 328,071,615,504.44/642,149.76 - Step 6: Final answer
x = 510,895.80
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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.