Finding the Fourth Proportional to 1,112,132.92, 1,534,809.62 and 628,743.06
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Solution
The fourth proportional to 1,112,132.92, 1,534,809.62 and 628,743.06 is: 867,702.84
Step by Step Solution
- Step 1: Write the proportion equation
1,112,132.92 : 1,534,809.62 = 628,743.06 : x - Step 2: Convert to fraction form
1,112,132.92/1,534,809.62 = 628,743.06/x - Step 3: Cross multiply
1,112,132.92x = 1,534,809.62 × 628,743.06 - Step 4: Simplify right side
1,112,132.92x = 965,000,896,996.24 - Step 5: Solve for x
x = 965,000,896,996.24/1,112,132.92 - Step 6: Final answer
x = 867,702.84
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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.