Finding the Fourth Proportional to 836,186.93, 1,153,918.59 and 487,305.09
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Solution
The fourth proportional to 836,186.93, 1,153,918.59 and 487,305.09 is: 672,469.74
Step by Step Solution
- Step 1: Write the proportion equation
836,186.93 : 1,153,918.59 = 487,305.09 : x - Step 2: Convert to fraction form
836,186.93/1,153,918.59 = 487,305.09/x - Step 3: Cross multiply
836,186.93x = 1,153,918.59 × 487,305.09 - Step 4: Simplify right side
836,186.93x = 562,310,402,352.62 - Step 5: Solve for x
x = 562,310,402,352.62/836,186.93 - Step 6: Final answer
x = 672,469.74
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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.