Finding the Fourth Proportional to 709,589.12, 979,224.96 and 387,296.72
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Solution
The fourth proportional to 709,589.12, 979,224.96 and 387,296.72 is: 534,465.09
Step by Step Solution
- Step 1: Write the proportion equation
709,589.12 : 979,224.96 = 387,296.72 : x - Step 2: Convert to fraction form
709,589.12/979,224.96 = 387,296.72/x - Step 3: Cross multiply
709,589.12x = 979,224.96 × 387,296.72 - Step 4: Simplify right side
709,589.12x = 379,250,615,150.13 - Step 5: Solve for x
x = 379,250,615,150.13/709,589.12 - Step 6: Final answer
x = 534,465.09
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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.