Finding the Fourth Proportional to 509,381.28, 703,161.68 and 343,845.36
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Solution
The fourth proportional to 509,381.28, 703,161.68 and 343,845.36 is: 474,652.07
Step by Step Solution
- Step 1: Write the proportion equation
509,381.28 : 703,161.68 = 343,845.36 : x - Step 2: Convert to fraction form
509,381.28/703,161.68 = 343,845.36/x - Step 3: Cross multiply
509,381.28x = 703,161.68 × 343,845.36 - Step 4: Simplify right side
509,381.28x = 241,778,879,278.58 - Step 5: Solve for x
x = 241,778,879,278.58/509,381.28 - Step 6: Final answer
x = 474,652.07
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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.