Finding the Fourth Proportional to 783,719.07, 1,081,544.67 and 439,631.49
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Solution
The fourth proportional to 783,719.07, 1,081,544.67 and 439,631.49 is: 606,698.39
Step by Step Solution
- Step 1: Write the proportion equation
783,719.07 : 1,081,544.67 = 439,631.49 : x - Step 2: Convert to fraction form
783,719.07/1,081,544.67 = 439,631.49/x - Step 3: Cross multiply
783,719.07x = 1,081,544.67 × 439,631.49 - Step 4: Simplify right side
783,719.07x = 475,481,094,773.66 - Step 5: Solve for x
x = 475,481,094,773.66/783,719.07 - Step 6: Final answer
x = 606,698.39
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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.