Finding the Fourth Proportional to 2,121,363.57, 2,927,425.58 and 1,154,473.05
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Solution
The fourth proportional to 2,121,363.57, 2,927,425.58 and 1,154,473.05 is: 1,593,142.25
Step by Step Solution
- Step 1: Write the proportion equation
2,121,363.57 : 2,927,425.58 = 1,154,473.05 : x - Step 2: Convert to fraction form
2,121,363.57/2,927,425.58 = 1,154,473.05/x - Step 3: Cross multiply
2,121,363.57x = 2,927,425.58 × 1,154,473.05 - Step 4: Simplify right side
2,121,363.57x = 3,379,633,932,218.25 - Step 5: Solve for x
x = 3,379,633,932,218.25/2,121,363.57 - Step 6: Final answer
x = 1,593,142.25
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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.