Finding the Fourth Proportional to 1,378,850.64, 2,068,276.57 and 432,295.17
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Solution
The fourth proportional to 1,378,850.64, 2,068,276.57 and 432,295.17 is: 648,442.95
Step by Step Solution
- Step 1: Write the proportion equation
1,378,850.64 : 2,068,276.57 = 432,295.17 : x - Step 2: Convert to fraction form
1,378,850.64/2,068,276.57 = 432,295.17/x - Step 3: Cross multiply
1,378,850.64x = 2,068,276.57 × 432,295.17 - Step 4: Simplify right side
1,378,850.64x = 894,105,971,435.17 - Step 5: Solve for x
x = 894,105,971,435.17/1,378,850.64 - Step 6: Final answer
x = 648,442.95
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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.