Finding the Fourth Proportional to 393,643.19, 590,558.48 and 127,403.71
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Solution
The fourth proportional to 393,643.19, 590,558.48 and 127,403.71 is: 191,135.88
Step by Step Solution
- Step 1: Write the proportion equation
393,643.19 : 590,558.48 = 127,403.71 : x - Step 2: Convert to fraction form
393,643.19/590,558.48 = 127,403.71/x - Step 3: Cross multiply
393,643.19x = 590,558.48 × 127,403.71 - Step 4: Simplify right side
393,643.19x = 75,239,337,734.15 - Step 5: Solve for x
x = 75,239,337,734.15/393,643.19 - Step 6: Final answer
x = 191,135.88
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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.