Finding the Fourth Proportional to 1,126,276.32, 1,553,872.80 and 642,492.48
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Solution
The fourth proportional to 1,126,276.32, 1,553,872.80 and 642,492.48 is: 886,417.99
Step by Step Solution
- Step 1: Write the proportion equation
1,126,276.32 : 1,553,872.80 = 642,492.48 : x - Step 2: Convert to fraction form
1,126,276.32/1,553,872.80 = 642,492.48/x - Step 3: Cross multiply
1,126,276.32x = 1,553,872.80 × 642,492.48 - Step 4: Simplify right side
1,126,276.32x = 998,351,588,876.54 - Step 5: Solve for x
x = 998,351,588,876.54/1,126,276.32 - Step 6: Final answer
x = 886,417.99
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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.