Finding the Fourth Proportional to 1,126,495.92, 1,689,714.68 and 378,541.92
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Solution
The fourth proportional to 1,126,495.92, 1,689,714.68 and 378,541.92 is: 567,803.07
Step by Step Solution
- Step 1: Write the proportion equation
1,126,495.92 : 1,689,714.68 = 378,541.92 : x - Step 2: Convert to fraction form
1,126,495.92/1,689,714.68 = 378,541.92/x - Step 3: Cross multiply
1,126,495.92x = 1,689,714.68 × 378,541.92 - Step 4: Simplify right side
1,126,495.92x = 639,627,839,219.39 - Step 5: Solve for x
x = 639,627,839,219.39/1,126,495.92 - Step 6: Final answer
x = 567,803.07
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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.