Finding the Fourth Proportional to 1,459,447.12, 2,189,122.80 and 660,728.80
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Solution
The fourth proportional to 1,459,447.12, 2,189,122.80 and 660,728.80 is: 991,071.52
Step by Step Solution
- Step 1: Write the proportion equation
1,459,447.12 : 2,189,122.80 = 660,728.80 : x - Step 2: Convert to fraction form
1,459,447.12/2,189,122.80 = 660,728.80/x - Step 3: Cross multiply
1,459,447.12x = 2,189,122.80 × 660,728.80 - Step 4: Simplify right side
1,459,447.12x = 1,446,416,480,696.64 - Step 5: Solve for x
x = 1,446,416,480,696.64/1,459,447.12 - Step 6: Final answer
x = 991,071.52
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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.