Finding the Fourth Proportional to 409,645.76, 614,468.63 and 129,184.88
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Solution
The fourth proportional to 409,645.76, 614,468.63 and 129,184.88 is: 193,777.31
Step by Step Solution
- Step 1: Write the proportion equation
409,645.76 : 614,468.63 = 129,184.88 : x - Step 2: Convert to fraction form
409,645.76/614,468.63 = 129,184.88/x - Step 3: Cross multiply
409,645.76x = 614,468.63 × 129,184.88 - Step 4: Simplify right side
409,645.76x = 79,380,053,480.93 - Step 5: Solve for x
x = 79,380,053,480.93/409,645.76 - Step 6: Final answer
x = 193,777.31
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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.