Finding the Fourth Proportional to 681,904.20, 1,022,856.30 and 416,183.70
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Solution
The fourth proportional to 681,904.20, 1,022,856.30 and 416,183.70 is: 624,275.55
Step by Step Solution
- Step 1: Write the proportion equation
681,904.20 : 1,022,856.30 = 416,183.70 : x - Step 2: Convert to fraction form
681,904.20/1,022,856.30 = 416,183.70/x - Step 3: Cross multiply
681,904.20x = 1,022,856.30 × 416,183.70 - Step 4: Simplify right side
681,904.20x = 425,696,119,502.31 - Step 5: Solve for x
x = 425,696,119,502.31/681,904.20 - Step 6: Final answer
x = 624,275.55
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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.