Finding the Fourth Proportional to 465,378.13, 642,281.21 and 284,051.26
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Solution
The fourth proportional to 465,378.13, 642,281.21 and 284,051.26 is: 392,026.99
Step by Step Solution
- Step 1: Write the proportion equation
465,378.13 : 642,281.21 = 284,051.26 : x - Step 2: Convert to fraction form
465,378.13/642,281.21 = 284,051.26/x - Step 3: Cross multiply
465,378.13x = 642,281.21 × 284,051.26 - Step 4: Simplify right side
465,378.13x = 182,440,786,974.83 - Step 5: Solve for x
x = 182,440,786,974.83/465,378.13 - Step 6: Final answer
x = 392,026.99
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1.5x scale
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.