Finding the Fourth Proportional to 744,869.84, 1,027,910.36 and 405,337.28
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Solution
The fourth proportional to 744,869.84, 1,027,910.36 and 405,337.28 is: 559,359.99
Step by Step Solution
- Step 1: Write the proportion equation
744,869.84 : 1,027,910.36 = 405,337.28 : x - Step 2: Convert to fraction form
744,869.84/1,027,910.36 = 405,337.28/x - Step 3: Cross multiply
744,869.84x = 1,027,910.36 × 405,337.28 - Step 4: Simplify right side
744,869.84x = 416,650,389,406.22 - Step 5: Solve for x
x = 416,650,389,406.22/744,869.84 - Step 6: Final answer
x = 559,359.99
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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.