Finding the Fourth Proportional to 659,236.48, 909,779.68 and 368,880.64
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Solution
The fourth proportional to 659,236.48, 909,779.68 and 368,880.64 is: 509,073.94
Step by Step Solution
- Step 1: Write the proportion equation
659,236.48 : 909,779.68 = 368,880.64 : x - Step 2: Convert to fraction form
659,236.48/909,779.68 = 368,880.64/x - Step 3: Cross multiply
659,236.48x = 909,779.68 × 368,880.64 - Step 4: Simplify right side
659,236.48x = 335,600,110,617.40 - Step 5: Solve for x
x = 335,600,110,617.40/659,236.48 - Step 6: Final answer
x = 509,073.94
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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.