Finding the Fourth Proportional to 1,639,562.70, 2,459,344.05 and 517,631.70
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Solution
The fourth proportional to 1,639,562.70, 2,459,344.05 and 517,631.70 is: 776,447.55
Step by Step Solution
- Step 1: Write the proportion equation
1,639,562.70 : 2,459,344.05 = 517,631.70 : x - Step 2: Convert to fraction form
1,639,562.70/2,459,344.05 = 517,631.70/x - Step 3: Cross multiply
1,639,562.70x = 2,459,344.05 × 517,631.70 - Step 4: Simplify right side
1,639,562.70x = 1,273,034,441,486.39 - Step 5: Solve for x
x = 1,273,034,441,486.39/1,639,562.70 - Step 6: Final answer
x = 776,447.55
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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.