Finding the Fourth Proportional to 493,249.64, 680,703.48 and 278,384.99
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Solution
The fourth proportional to 493,249.64, 680,703.48 and 278,384.99 is: 384,181.99
Step by Step Solution
- Step 1: Write the proportion equation
493,249.64 : 680,703.48 = 278,384.99 : x - Step 2: Convert to fraction form
493,249.64/680,703.48 = 278,384.99/x - Step 3: Cross multiply
493,249.64x = 680,703.48 × 278,384.99 - Step 4: Simplify right side
493,249.64x = 189,497,628,069.25 - Step 5: Solve for x
x = 189,497,628,069.25/493,249.64 - Step 6: Final answer
x = 384,181.99
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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.