Finding the Fourth Proportional to 386,277.80, 579,416.70 and 324,069.80
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Solution
The fourth proportional to 386,277.80, 579,416.70 and 324,069.80 is: 486,104.70
Step by Step Solution
- Step 1: Write the proportion equation
386,277.80 : 579,416.70 = 324,069.80 : x - Step 2: Convert to fraction form
386,277.80/579,416.70 = 324,069.80/x - Step 3: Cross multiply
386,277.80x = 579,416.70 × 324,069.80 - Step 4: Simplify right side
386,277.80x = 187,771,454,085.66 - Step 5: Solve for x
x = 187,771,454,085.66/386,277.80 - Step 6: Final answer
x = 486,104.70
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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.