Finding the Fourth Proportional to 428,605.87, 642,863.70 and 175,913.08
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Solution
The fourth proportional to 428,605.87, 642,863.70 and 175,913.08 is: 263,851.11
Step by Step Solution
- Step 1: Write the proportion equation
428,605.87 : 642,863.70 = 175,913.08 : x - Step 2: Convert to fraction form
428,605.87/642,863.70 = 175,913.08/x - Step 3: Cross multiply
428,605.87x = 642,863.70 × 175,913.08 - Step 4: Simplify right side
428,605.87x = 113,088,133,487.20 - Step 5: Solve for x
x = 113,088,133,487.20/428,605.87 - Step 6: Final answer
x = 263,851.11
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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.