Finding the Fourth Proportional to 498,766.20, 748,149.30 and 299,311.80
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Solution
The fourth proportional to 498,766.20, 748,149.30 and 299,311.80 is: 448,967.70
Step by Step Solution
- Step 1: Write the proportion equation
498,766.20 : 748,149.30 = 299,311.80 : x - Step 2: Convert to fraction form
498,766.20/748,149.30 = 299,311.80/x - Step 3: Cross multiply
498,766.20x = 748,149.30 × 299,311.80 - Step 4: Simplify right side
498,766.20x = 223,929,913,651.74 - Step 5: Solve for x
x = 223,929,913,651.74/498,766.20 - Step 6: Final answer
x = 448,967.70
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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.