Finding the Fourth Proportional to 708,938.20, 1,063,608.18 and 288,515.80
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Solution
The fourth proportional to 708,938.20, 1,063,608.18 and 288,515.80 is: 432,855.45
Step by Step Solution
- Step 1: Write the proportion equation
708,938.20 : 1,063,608.18 = 288,515.80 : x - Step 2: Convert to fraction form
708,938.20/1,063,608.18 = 288,515.80/x - Step 3: Cross multiply
708,938.20x = 1,063,608.18 × 288,515.80 - Step 4: Simplify right side
708,938.20x = 306,867,764,939.24 - Step 5: Solve for x
x = 306,867,764,939.24/708,938.20 - Step 6: Final answer
x = 432,855.45
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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.