Finding the Fourth Proportional to 874,138.17, 1,206,347.88 and 486,953.12
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Solution
The fourth proportional to 874,138.17, 1,206,347.88 and 486,953.12 is: 672,016.03
Step by Step Solution
- Step 1: Write the proportion equation
874,138.17 : 1,206,347.88 = 486,953.12 : x - Step 2: Convert to fraction form
874,138.17/1,206,347.88 = 486,953.12/x - Step 3: Cross multiply
874,138.17x = 1,206,347.88 × 486,953.12 - Step 4: Simplify right side
874,138.17x = 587,434,863,971.39 - Step 5: Solve for x
x = 587,434,863,971.39/874,138.17 - Step 6: Final answer
x = 672,016.03
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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.