Finding the Fourth Proportional to 418,489.68, 627,729.12 and 102,949.32
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Solution
The fourth proportional to 418,489.68, 627,729.12 and 102,949.32 is: 154,422.65
Step by Step Solution
- Step 1: Write the proportion equation
418,489.68 : 627,729.12 = 102,949.32 : x - Step 2: Convert to fraction form
418,489.68/627,729.12 = 102,949.32/x - Step 3: Cross multiply
418,489.68x = 627,729.12 × 102,949.32 - Step 4: Simplify right side
418,489.68x = 64,624,286,048.20 - Step 5: Solve for x
x = 64,624,286,048.20/418,489.68 - Step 6: Final answer
x = 154,422.65
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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.