Finding the Fourth Proportional to 1,919,042.99, 2,646,120.35 and 1,569,091.56
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Solution
The fourth proportional to 1,919,042.99, 2,646,120.35 and 1,569,091.56 is: 2,163,581.08
Step by Step Solution
- Step 1: Write the proportion equation
1,919,042.99 : 2,646,120.35 = 1,569,091.56 : x - Step 2: Convert to fraction form
1,919,042.99/2,646,120.35 = 1,569,091.56/x - Step 3: Cross multiply
1,919,042.99x = 2,646,120.35 × 1,569,091.56 - Step 4: Simplify right side
1,919,042.99x = 4,152,005,107,929.25 - Step 5: Solve for x
x = 4,152,005,107,929.25/1,919,042.99 - Step 6: Final answer
x = 2,163,581.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.