Finding the Fourth Proportional to 1,006,425.39, 1,388,847.90 and 558,861.09
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Solution
The fourth proportional to 1,006,425.39, 1,388,847.90 and 558,861.09 is: 771,217.68
Step by Step Solution
- Step 1: Write the proportion equation
1,006,425.39 : 1,388,847.90 = 558,861.09 : x - Step 2: Convert to fraction form
1,006,425.39/1,388,847.90 = 558,861.09/x - Step 3: Cross multiply
1,006,425.39x = 1,388,847.90 × 558,861.09 - Step 4: Simplify right side
1,006,425.39x = 776,173,055,128.77 - Step 5: Solve for x
x = 776,173,055,128.77/1,006,425.39 - Step 6: Final answer
x = 771,217.68
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1.5x scale
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.