Finding the Fourth Proportional to 665,765.06, 998,899.20 and 399,711.05
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Solution
The fourth proportional to 665,765.06, 998,899.20 and 399,711.05 is: 599,717.63
Step by Step Solution
- Step 1: Write the proportion equation
665,765.06 : 998,899.20 = 399,711.05 : x - Step 2: Convert to fraction form
665,765.06/998,899.20 = 399,711.05/x - Step 3: Cross multiply
665,765.06x = 998,899.20 × 399,711.05 - Step 4: Simplify right side
665,765.06x = 399,271,043,081.66 - Step 5: Solve for x
x = 399,271,043,081.66/665,765.06 - Step 6: Final answer
x = 599,717.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.