Finding the Fourth Proportional to 1,378,861.02, 2,068,292.13 and 432,305.54
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Solution
The fourth proportional to 1,378,861.02, 2,068,292.13 and 432,305.54 is: 648,458.50
Step by Step Solution
- Step 1: Write the proportion equation
1,378,861.02 : 2,068,292.13 = 432,305.54 : x - Step 2: Convert to fraction form
1,378,861.02/2,068,292.13 = 432,305.54/x - Step 3: Cross multiply
1,378,861.02x = 2,068,292.13 × 432,305.54 - Step 4: Simplify right side
1,378,861.02x = 894,134,146,137.40 - Step 5: Solve for x
x = 894,134,146,137.40/1,378,861.02 - Step 6: Final answer
x = 648,458.50
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1.5x scale
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.