Finding the Fourth Proportional to 354,406.14, 529,350.12 and 320,620.32
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Solution
The fourth proportional to 354,406.14, 529,350.12 and 320,620.32 is: 478,886.75
Step by Step Solution
- Step 1: Write the proportion equation
354,406.14 : 529,350.12 = 320,620.32 : x - Step 2: Convert to fraction form
354,406.14/529,350.12 = 320,620.32/x - Step 3: Cross multiply
354,406.14x = 529,350.12 × 320,620.32 - Step 4: Simplify right side
354,406.14x = 169,720,404,866.44 - Step 5: Solve for x
x = 169,720,404,866.44/354,406.14 - Step 6: Final answer
x = 478,886.75
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.