Finding the Fourth Proportional to 2,121,552.23, 2,927,742.09 and 1,154,689.55
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Solution
The fourth proportional to 2,121,552.23, 2,927,742.09 and 1,154,689.55 is: 1,593,471.59
Step by Step Solution
- Step 1: Write the proportion equation
2,121,552.23 : 2,927,742.09 = 1,154,689.55 : x - Step 2: Convert to fraction form
2,121,552.23/2,927,742.09 = 1,154,689.55/x - Step 3: Cross multiply
2,121,552.23x = 2,927,742.09 × 1,154,689.55 - Step 4: Simplify right side
2,121,552.23x = 3,380,633,196,418.16 - Step 5: Solve for x
x = 3,380,633,196,418.16/2,121,552.23 - Step 6: Final answer
x = 1,593,471.59
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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.