Finding the Fourth Proportional to 538,887.96, 743,808.49 and 318,318.68
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Solution
The fourth proportional to 538,887.96, 743,808.49 and 318,318.68 is: 439,364.31
Step by Step Solution
- Step 1: Write the proportion equation
538,887.96 : 743,808.49 = 318,318.68 : x - Step 2: Convert to fraction form
538,887.96/743,808.49 = 318,318.68/x - Step 3: Cross multiply
538,887.96x = 743,808.49 × 318,318.68 - Step 4: Simplify right side
538,887.96x = 236,768,137,773.32 - Step 5: Solve for x
x = 236,768,137,773.32/538,887.96 - Step 6: Final answer
x = 439,364.31
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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.