Finding the Fourth Proportional to 1,129,204.26, 1,558,333.08 and 639,134.82
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Solution
The fourth proportional to 1,129,204.26, 1,558,333.08 and 639,134.82 is: 882,023.71
Step by Step Solution
- Step 1: Write the proportion equation
1,129,204.26 : 1,558,333.08 = 639,134.82 : x - Step 2: Convert to fraction form
1,129,204.26/1,558,333.08 = 639,134.82/x - Step 3: Cross multiply
1,129,204.26x = 1,558,333.08 × 639,134.82 - Step 4: Simplify right side
1,129,204.26x = 995,984,932,585.85 - Step 5: Solve for x
x = 995,984,932,585.85/1,129,204.26 - Step 6: Final answer
x = 882,023.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.