Finding the Fourth Proportional to 738,382.90, 1,107,574.35 and 402,459.70
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Solution
The fourth proportional to 738,382.90, 1,107,574.35 and 402,459.70 is: 603,689.55
Step by Step Solution
- Step 1: Write the proportion equation
738,382.90 : 1,107,574.35 = 402,459.70 : x - Step 2: Convert to fraction form
738,382.90/1,107,574.35 = 402,459.70/x - Step 3: Cross multiply
738,382.90x = 1,107,574.35 × 402,459.70 - Step 4: Simplify right side
738,382.90x = 445,754,040,628.70 - Step 5: Solve for x
x = 445,754,040,628.70/738,382.90 - Step 6: Final answer
x = 603,689.55
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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.