Finding the Fourth Proportional to 876,391.20, 1,314,489.60 and 245,368.80
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Solution
The fourth proportional to 876,391.20, 1,314,489.60 and 245,368.80 is: 368,025.99
Step by Step Solution
- Step 1: Write the proportion equation
876,391.20 : 1,314,489.60 = 245,368.80 : x - Step 2: Convert to fraction form
876,391.20/1,314,489.60 = 245,368.80/x - Step 3: Cross multiply
876,391.20x = 1,314,489.60 × 245,368.80 - Step 4: Simplify right side
876,391.20x = 322,534,735,764.48 - Step 5: Solve for x
x = 322,534,735,764.48/876,391.20 - Step 6: Final answer
x = 368,025.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.