Finding the Fourth Proportional to 746,149.56, 1,029,708.24 and 406,639.68
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Solution
The fourth proportional to 746,149.56, 1,029,708.24 and 406,639.68 is: 561,174.66
Step by Step Solution
- Step 1: Write the proportion equation
746,149.56 : 1,029,708.24 = 406,639.68 : x - Step 2: Convert to fraction form
746,149.56/1,029,708.24 = 406,639.68/x - Step 3: Cross multiply
746,149.56x = 1,029,708.24 × 406,639.68 - Step 4: Simplify right side
746,149.56x = 418,720,229,206.96 - Step 5: Solve for x
x = 418,720,229,206.96/746,149.56 - Step 6: Final answer
x = 561,174.66
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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.