Finding the Fourth Proportional to 587,129.86, 810,225.48 and 345,427.99
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Solution
The fourth proportional to 587,129.86, 810,225.48 and 345,427.99 is: 476,682.56
Step by Step Solution
- Step 1: Write the proportion equation
587,129.86 : 810,225.48 = 345,427.99 : x - Step 2: Convert to fraction form
587,129.86/810,225.48 = 345,427.99/x - Step 3: Cross multiply
587,129.86x = 810,225.48 × 345,427.99 - Step 4: Simplify right side
587,129.86x = 279,874,562,830.50 - Step 5: Solve for x
x = 279,874,562,830.50/587,129.86 - Step 6: Final answer
x = 476,682.56
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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.