Finding the Fourth Proportional to 413,609.70, 577,872.60 and 413,609.70
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Solution
The fourth proportional to 413,609.70, 577,872.60 and 413,609.70 is: 577,872.60
Step by Step Solution
- Step 1: Write the proportion equation
413,609.70 : 577,872.60 = 413,609.70 : x - Step 2: Convert to fraction form
413,609.70/577,872.60 = 413,609.70/x - Step 3: Cross multiply
413,609.70x = 577,872.60 × 413,609.70 - Step 4: Simplify right side
413,609.70x = 239,013,712,724.22 - Step 5: Solve for x
x = 239,013,712,724.22/413,609.70 - Step 6: Final answer
x = 577,872.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.