Finding the Fourth Proportional to 759,185.76, 1,138,779.06 and 198,220.26
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Solution
The fourth proportional to 759,185.76, 1,138,779.06 and 198,220.26 is: 297,330.50
Step by Step Solution
- Step 1: Write the proportion equation
759,185.76 : 1,138,779.06 = 198,220.26 : x - Step 2: Convert to fraction form
759,185.76/1,138,779.06 = 198,220.26/x - Step 3: Cross multiply
759,185.76x = 1,138,779.06 × 198,220.26 - Step 4: Simplify right side
759,185.76x = 225,729,081,355.76 - Step 5: Solve for x
x = 225,729,081,355.76/759,185.76 - Step 6: Final answer
x = 297,330.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.