Finding the Fourth Proportional to 783,864.62, 1,081,744.68 and 439,776.62
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Solution
The fourth proportional to 783,864.62, 1,081,744.68 and 439,776.62 is: 606,898.19
Step by Step Solution
- Step 1: Write the proportion equation
783,864.62 : 1,081,744.68 = 439,776.62 : x - Step 2: Convert to fraction form
783,864.62/1,081,744.68 = 439,776.62/x - Step 3: Cross multiply
783,864.62x = 1,081,744.68 × 439,776.62 - Step 4: Simplify right side
783,864.62x = 475,726,019,073.38 - Step 5: Solve for x
x = 475,726,019,073.38/783,864.62 - Step 6: Final answer
x = 606,898.19
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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.