Finding the Fourth Proportional to 498,441.87, 687,840.93 and 283,577.31
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Solution
The fourth proportional to 498,441.87, 687,840.93 and 283,577.31 is: 391,331.65
Step by Step Solution
- Step 1: Write the proportion equation
498,441.87 : 687,840.93 = 283,577.31 : x - Step 2: Convert to fraction form
498,441.87/687,840.93 = 283,577.31/x - Step 3: Cross multiply
498,441.87x = 687,840.93 × 283,577.31 - Step 4: Simplify right side
498,441.87x = 195,056,080,637.30 - Step 5: Solve for x
x = 195,056,080,637.30/498,441.87 - Step 6: Final answer
x = 391,331.65
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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.