Finding the Fourth Proportional to 516,400.26, 712,616.94 and 286,956.84
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Solution
The fourth proportional to 516,400.26, 712,616.94 and 286,956.84 is: 395,991.87
Step by Step Solution
- Step 1: Write the proportion equation
516,400.26 : 712,616.94 = 286,956.84 : x - Step 2: Convert to fraction form
516,400.26/712,616.94 = 286,956.84/x - Step 3: Cross multiply
516,400.26x = 712,616.94 × 286,956.84 - Step 4: Simplify right side
516,400.26x = 204,490,305,232.87 - Step 5: Solve for x
x = 204,490,305,232.87/516,400.26 - Step 6: Final answer
x = 395,991.87
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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.