Finding the Fourth Proportional to 642,133.48, 886,135.26 and 370,201.90
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Solution
The fourth proportional to 642,133.48, 886,135.26 and 370,201.90 is: 510,873.47
Step by Step Solution
- Step 1: Write the proportion equation
642,133.48 : 886,135.26 = 370,201.90 : x - Step 2: Convert to fraction form
642,133.48/886,135.26 = 370,201.90/x - Step 3: Cross multiply
642,133.48x = 886,135.26 × 370,201.90 - Step 4: Simplify right side
642,133.48x = 328,048,956,908.99 - Step 5: Solve for x
x = 328,048,956,908.99/642,133.48 - Step 6: Final answer
x = 510,873.47
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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.