Finding the Fourth Proportional to 618,854.87, 928,295.26 and 198,129.53
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Solution
The fourth proportional to 618,854.87, 928,295.26 and 198,129.53 is: 297,198.44
Step by Step Solution
- Step 1: Write the proportion equation
618,854.87 : 928,295.26 = 198,129.53 : x - Step 2: Convert to fraction form
618,854.87/928,295.26 = 198,129.53/x - Step 3: Cross multiply
618,854.87x = 928,295.26 × 198,129.53 - Step 4: Simplify right side
618,854.87x = 183,922,703,565.03 - Step 5: Solve for x
x = 183,922,703,565.03/618,854.87 - Step 6: Final answer
x = 297,198.44
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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.