Finding the Fourth Proportional to 659,587.20, 988,603.20 and 343,881.60
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Solution
The fourth proportional to 659,587.20, 988,603.20 and 343,881.60 is: 515,416.99
Step by Step Solution
- Step 1: Write the proportion equation
659,587.20 : 988,603.20 = 343,881.60 : x - Step 2: Convert to fraction form
659,587.20/988,603.20 = 343,881.60/x - Step 3: Cross multiply
659,587.20x = 988,603.20 × 343,881.60 - Step 4: Simplify right side
659,587.20x = 339,962,450,181.12 - Step 5: Solve for x
x = 339,962,450,181.12/659,587.20 - Step 6: Final answer
x = 515,416.99
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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.