Finding the Fourth Proportional to 485,808.41, 670,727.62 and 304,768.55
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Solution
The fourth proportional to 485,808.41, 670,727.62 and 304,768.55 is: 420,776.34
Step by Step Solution
- Step 1: Write the proportion equation
485,808.41 : 670,727.62 = 304,768.55 : x - Step 2: Convert to fraction form
485,808.41/670,727.62 = 304,768.55/x - Step 3: Cross multiply
485,808.41x = 670,727.62 × 304,768.55 - Step 4: Simplify right side
485,808.41x = 204,416,686,250.13 - Step 5: Solve for x
x = 204,416,686,250.13/485,808.41 - Step 6: Final answer
x = 420,776.34
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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.