Finding the Fourth Proportional to 642,420.99, 886,540.55 and 370,484.96
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Solution
The fourth proportional to 642,420.99, 886,540.55 and 370,484.96 is: 511,268.99
Step by Step Solution
- Step 1: Write the proportion equation
642,420.99 : 886,540.55 = 370,484.96 : x - Step 2: Convert to fraction form
642,420.99/886,540.55 = 370,484.96/x - Step 3: Cross multiply
642,420.99x = 886,540.55 × 370,484.96 - Step 4: Simplify right side
642,420.99x = 328,449,933,920.00 - Step 5: Solve for x
x = 328,449,933,920.00/642,420.99 - Step 6: Final answer
x = 511,268.99
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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.