Finding the Fourth Proportional to 899,677.84, 1,241,532.24 and 491,780.68
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Solution
The fourth proportional to 899,677.84, 1,241,532.24 and 491,780.68 is: 678,644.67
Step by Step Solution
- Step 1: Write the proportion equation
899,677.84 : 1,241,532.24 = 491,780.68 : x - Step 2: Convert to fraction form
899,677.84/1,241,532.24 = 491,780.68/x - Step 3: Cross multiply
899,677.84x = 1,241,532.24 × 491,780.68 - Step 4: Simplify right side
899,677.84x = 610,561,569,229.12 - Step 5: Solve for x
x = 610,561,569,229.12/899,677.84 - Step 6: Final answer
x = 678,644.67
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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.