Finding the Fourth Proportional to 493,977.31, 681,800.48 and 279,241.99
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Solution
The fourth proportional to 493,977.31, 681,800.48 and 279,241.99 is: 385,417.14
Step by Step Solution
- Step 1: Write the proportion equation
493,977.31 : 681,800.48 = 279,241.99 : x - Step 2: Convert to fraction form
493,977.31/681,800.48 = 279,241.99/x - Step 3: Cross multiply
493,977.31x = 681,800.48 × 279,241.99 - Step 4: Simplify right side
493,977.31x = 190,387,322,818.16 - Step 5: Solve for x
x = 190,387,322,818.16/493,977.31 - Step 6: Final answer
x = 385,417.14
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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.