Finding the Fourth Proportional to 904,492.85, 1,248,202.31 and 496,620.99
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Solution
The fourth proportional to 904,492.85, 1,248,202.31 and 496,620.99 is: 685,338.16
Step by Step Solution
- Step 1: Write the proportion equation
904,492.85 : 1,248,202.31 = 496,620.99 : x - Step 2: Convert to fraction form
904,492.85/1,248,202.31 = 496,620.99/x - Step 3: Cross multiply
904,492.85x = 1,248,202.31 × 496,620.99 - Step 4: Simplify right side
904,492.85x = 619,883,464,429.38 - Step 5: Solve for x
x = 619,883,464,429.38/904,492.85 - Step 6: Final answer
x = 685,338.16
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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.