Finding the Fourth Proportional to 1,457,341.21, 2,011,156.73 and 812,692.18
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Solution
The fourth proportional to 1,457,341.21, 2,011,156.73 and 812,692.18 is: 1,121,529.63
Step by Step Solution
- Step 1: Write the proportion equation
1,457,341.21 : 2,011,156.73 = 812,692.18 : x - Step 2: Convert to fraction form
1,457,341.21/2,011,156.73 = 812,692.18/x - Step 3: Cross multiply
1,457,341.21x = 2,011,156.73 × 812,692.18 - Step 4: Simplify right side
1,457,341.21x = 1,634,451,347,225.37 - Step 5: Solve for x
x = 1,634,451,347,225.37/1,457,341.21 - Step 6: Final answer
x = 1,121,529.63
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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.