Finding the Fourth Proportional to 1,930,728.40, 2,897,129.40 and 808,910.80
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Solution
The fourth proportional to 1,930,728.40, 2,897,129.40 and 808,910.80 is: 1,213,800.58
Step by Step Solution
- Step 1: Write the proportion equation
1,930,728.40 : 2,897,129.40 = 808,910.80 : x - Step 2: Convert to fraction form
1,930,728.40/2,897,129.40 = 808,910.80/x - Step 3: Cross multiply
1,930,728.40x = 2,897,129.40 × 808,910.80 - Step 4: Simplify right side
1,930,728.40x = 2,343,519,260,657.52 - Step 5: Solve for x
x = 2,343,519,260,657.52/1,930,728.40 - Step 6: Final answer
x = 1,213,800.58
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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.