Finding the Fourth Proportional to 486,779.79, 671,756.12 and 271,919.87
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Solution
The fourth proportional to 486,779.79, 671,756.12 and 271,919.87 is: 375,249.43
Step by Step Solution
- Step 1: Write the proportion equation
486,779.79 : 671,756.12 = 271,919.87 : x - Step 2: Convert to fraction form
486,779.79/671,756.12 = 271,919.87/x - Step 3: Cross multiply
486,779.79x = 671,756.12 × 271,919.87 - Step 4: Simplify right side
486,779.79x = 182,663,836,822.10 - Step 5: Solve for x
x = 182,663,836,822.10/486,779.79 - Step 6: Final answer
x = 375,249.43
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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.