Finding the Fourth Proportional to 542,405.70, 812,806.65 and 392,960.70
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Solution
The fourth proportional to 542,405.70, 812,806.65 and 392,960.70 is: 588,860.09
Step by Step Solution
- Step 1: Write the proportion equation
542,405.70 : 812,806.65 = 392,960.70 : x - Step 2: Convert to fraction form
542,405.70/812,806.65 = 392,960.70/x - Step 3: Cross multiply
542,405.70x = 812,806.65 × 392,960.70 - Step 4: Simplify right side
542,405.70x = 319,401,070,148.66 - Step 5: Solve for x
x = 319,401,070,148.66/542,405.70 - Step 6: Final answer
x = 588,860.09
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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.