Finding the Fourth Proportional to 1,707,302.70, 2,555,424.45 and 1,209,638.70
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Solution
The fourth proportional to 1,707,302.70, 2,555,424.45 and 1,209,638.70 is: 1,810,540.28
Step by Step Solution
- Step 1: Write the proportion equation
1,707,302.70 : 2,555,424.45 = 1,209,638.70 : x - Step 2: Convert to fraction form
1,707,302.70/2,555,424.45 = 1,209,638.70/x - Step 3: Cross multiply
1,707,302.70x = 2,555,424.45 × 1,209,638.70 - Step 4: Simplify right side
1,707,302.70x = 3,091,140,309,646.22 - Step 5: Solve for x
x = 3,091,140,309,646.22/1,707,302.70 - Step 6: Final answer
x = 1,810,540.28
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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.