Finding the Fourth Proportional to 860,112.75, 1,186,986.05 and 472,957.63
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Solution
The fourth proportional to 860,112.75, 1,186,986.05 and 472,957.63 is: 652,698.28
Step by Step Solution
- Step 1: Write the proportion equation
860,112.75 : 1,186,986.05 = 472,957.63 : x - Step 2: Convert to fraction form
860,112.75/1,186,986.05 = 472,957.63/x - Step 3: Cross multiply
860,112.75x = 1,186,986.05 × 472,957.63 - Step 4: Simplify right side
860,112.75x = 561,394,109,051.06 - Step 5: Solve for x
x = 561,394,109,051.06/860,112.75 - Step 6: Final answer
x = 652,698.28
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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.