Finding the Fourth Proportional to 628,171.65, 867,030.84 and 356,398.62
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Solution
The fourth proportional to 628,171.65, 867,030.84 and 356,398.62 is: 491,917.45
Step by Step Solution
- Step 1: Write the proportion equation
628,171.65 : 867,030.84 = 356,398.62 : x - Step 2: Convert to fraction form
628,171.65/867,030.84 = 356,398.62/x - Step 3: Cross multiply
628,171.65x = 867,030.84 × 356,398.62 - Step 4: Simplify right side
628,171.65x = 309,008,594,873.44 - Step 5: Solve for x
x = 309,008,594,873.44/628,171.65 - Step 6: Final answer
x = 491,917.45
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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.