Finding the Fourth Proportional to 1,896,135.32, 2,616,616.50 and 1,121,806.10
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Solution
The fourth proportional to 1,896,135.32, 2,616,616.50 and 1,121,806.10 is: 1,548,062.69
Step by Step Solution
- Step 1: Write the proportion equation
1,896,135.32 : 2,616,616.50 = 1,121,806.10 : x - Step 2: Convert to fraction form
1,896,135.32/2,616,616.50 = 1,121,806.10/x - Step 3: Cross multiply
1,896,135.32x = 2,616,616.50 × 1,121,806.10 - Step 4: Simplify right side
1,896,135.32x = 2,935,336,351,060.65 - Step 5: Solve for x
x = 2,935,336,351,060.65/1,896,135.32 - Step 6: Final answer
x = 1,548,062.69
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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.