Finding the Fourth Proportional to 904,645.36, 1,248,354.68 and 496,745.56
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Solution
The fourth proportional to 904,645.36, 1,248,354.68 and 496,745.56 is: 685,478.17
Step by Step Solution
- Step 1: Write the proportion equation
904,645.36 : 1,248,354.68 = 496,745.56 : x - Step 2: Convert to fraction form
904,645.36/1,248,354.68 = 496,745.56/x - Step 3: Cross multiply
904,645.36x = 1,248,354.68 × 496,745.56 - Step 4: Simplify right side
904,645.36x = 620,114,644,595.22 - Step 5: Solve for x
x = 620,114,644,595.22/904,645.36 - Step 6: Final answer
x = 685,478.17
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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.