Finding the Fourth Proportional to 1,478,201.80, 2,217,302.70 and 1,159,337.20
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Solution
The fourth proportional to 1,478,201.80, 2,217,302.70 and 1,159,337.20 is: 1,739,005.80
Step by Step Solution
- Step 1: Write the proportion equation
1,478,201.80 : 2,217,302.70 = 1,159,337.20 : x - Step 2: Convert to fraction form
1,478,201.80/2,217,302.70 = 1,159,337.20/x - Step 3: Cross multiply
1,478,201.80x = 2,217,302.70 × 1,159,337.20 - Step 4: Simplify right side
1,478,201.80x = 2,570,601,503,770.44 - Step 5: Solve for x
x = 2,570,601,503,770.44/1,478,201.80 - Step 6: Final answer
x = 1,739,005.80
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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.