Finding the Fourth Proportional to 647,814.84, 893,985.84 and 361,327.56
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Solution
The fourth proportional to 647,814.84, 893,985.84 and 361,327.56 is: 498,632.79
Step by Step Solution
- Step 1: Write the proportion equation
647,814.84 : 893,985.84 = 361,327.56 : x - Step 2: Convert to fraction form
647,814.84/893,985.84 = 361,327.56/x - Step 3: Cross multiply
647,814.84x = 893,985.84 × 361,327.56 - Step 4: Simplify right side
647,814.84x = 323,021,722,241.75 - Step 5: Solve for x
x = 323,021,722,241.75/647,814.84 - Step 6: Final answer
x = 498,632.79
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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.