Finding the Fourth Proportional to 709,832.84, 979,564.26 and 387,542.92
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Solution
The fourth proportional to 709,832.84, 979,564.26 and 387,542.92 is: 534,806.47
Step by Step Solution
- Step 1: Write the proportion equation
709,832.84 : 979,564.26 = 387,542.92 : x - Step 2: Convert to fraction form
709,832.84/979,564.26 = 387,542.92/x - Step 3: Cross multiply
709,832.84x = 979,564.26 × 387,542.92 - Step 4: Simplify right side
709,832.84x = 379,623,193,648.04 - Step 5: Solve for x
x = 379,623,193,648.04/709,832.84 - Step 6: Final answer
x = 534,806.47
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1.5x scale
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.