Finding the Fourth Proportional to 626,423.76, 864,519.30 and 354,578.94
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Solution
The fourth proportional to 626,423.76, 864,519.30 and 354,578.94 is: 489,349.79
Step by Step Solution
- Step 1: Write the proportion equation
626,423.76 : 864,519.30 = 354,578.94 : x - Step 2: Convert to fraction form
626,423.76/864,519.30 = 354,578.94/x - Step 3: Cross multiply
626,423.76x = 864,519.30 × 354,578.94 - Step 4: Simplify right side
626,423.76x = 306,540,337,003.54 - Step 5: Solve for x
x = 306,540,337,003.54/626,423.76 - Step 6: Final answer
x = 489,349.79
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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.