Finding the Fourth Proportional to 1,126,279.98, 1,554,305.22 and 616,982.40
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Solution
The fourth proportional to 1,126,279.98, 1,554,305.22 and 616,982.40 is: 851,456.99
Step by Step Solution
- Step 1: Write the proportion equation
1,126,279.98 : 1,554,305.22 = 616,982.40 : x - Step 2: Convert to fraction form
1,126,279.98/1,554,305.22 = 616,982.40/x - Step 3: Cross multiply
1,126,279.98x = 1,554,305.22 × 616,982.40 - Step 4: Simplify right side
1,126,279.98x = 958,978,964,968.13 - Step 5: Solve for x
x = 958,978,964,968.13/1,126,279.98 - Step 6: Final answer
x = 851,456.99
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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.