Finding the Fourth Proportional to 1,457,491.92, 2,011,341.90 and 812,895.54
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Solution
The fourth proportional to 1,457,491.92, 2,011,341.90 and 812,895.54 is: 1,121,797.55
Step by Step Solution
- Step 1: Write the proportion equation
1,457,491.92 : 2,011,341.90 = 812,895.54 : x - Step 2: Convert to fraction form
1,457,491.92/2,011,341.90 = 812,895.54/x - Step 3: Cross multiply
1,457,491.92x = 2,011,341.90 × 812,895.54 - Step 4: Simplify right side
1,457,491.92x = 1,635,010,859,925.13 - Step 5: Solve for x
x = 1,635,010,859,925.13/1,457,491.92 - Step 6: Final answer
x = 1,121,797.55
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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.