Finding the Fourth Proportional to 709,828.92, 979,556.49 and 387,538.02
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Solution
The fourth proportional to 709,828.92, 979,556.49 and 387,538.02 is: 534,798.42
Step by Step Solution
- Step 1: Write the proportion equation
709,828.92 : 979,556.49 = 387,538.02 : x - Step 2: Convert to fraction form
709,828.92/979,556.49 = 387,538.02/x - Step 3: Cross multiply
709,828.92x = 979,556.49 × 387,538.02 - Step 4: Simplify right side
709,828.92x = 379,615,382,612.75 - Step 5: Solve for x
x = 379,615,382,612.75/709,828.92 - Step 6: Final answer
x = 534,798.42
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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.