Finding the Fourth Proportional to 817,860.97, 1,226,703.84 and 285,392.08
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Solution
The fourth proportional to 817,860.97, 1,226,703.84 and 285,392.08 is: 428,057.55
Step by Step Solution
- Step 1: Write the proportion equation
817,860.97 : 1,226,703.84 = 285,392.08 : x - Step 2: Convert to fraction form
817,860.97/1,226,703.84 = 285,392.08/x - Step 3: Cross multiply
817,860.97x = 1,226,703.84 × 285,392.08 - Step 4: Simplify right side
817,860.97x = 350,091,560,441.59 - Step 5: Solve for x
x = 350,091,560,441.59/817,860.97 - Step 6: Final answer
x = 428,057.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.