Finding the Fourth Proportional to 4,457,311.68, 6,688,623.60 and 1,617,645.18
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Solution
The fourth proportional to 4,457,311.68, 6,688,623.60 and 1,617,645.18 is: 2,427,431.71
Step by Step Solution
- Step 1: Write the proportion equation
4,457,311.68 : 6,688,623.60 = 1,617,645.18 : x - Step 2: Convert to fraction form
4,457,311.68/6,688,623.60 = 1,617,645.18/x - Step 3: Cross multiply
4,457,311.68x = 6,688,623.60 × 1,617,645.18 - Step 4: Simplify right side
4,457,311.68x = 10,819,819,727,374.25 - Step 5: Solve for x
x = 10,819,819,727,374.25/4,457,311.68 - Step 6: Final answer
x = 2,427,431.71
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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.