Finding the Fourth Proportional to 716,841.80, 989,234.08 and 394,544.98
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Solution
The fourth proportional to 716,841.80, 989,234.08 and 394,544.98 is: 544,467.89
Step by Step Solution
- Step 1: Write the proportion equation
716,841.80 : 989,234.08 = 394,544.98 : x - Step 2: Convert to fraction form
716,841.80/989,234.08 = 394,544.98/x - Step 3: Cross multiply
716,841.80x = 989,234.08 × 394,544.98 - Step 4: Simplify right side
716,841.80x = 390,297,340,308.92 - Step 5: Solve for x
x = 390,297,340,308.92/716,841.80 - Step 6: Final answer
x = 544,467.89
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1.5x scale
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.