Finding the Fourth Proportional to 741,620.69, 1,023,408.12 and 419,337.53
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Solution
The fourth proportional to 741,620.69, 1,023,408.12 and 419,337.53 is: 578,669.71
Step by Step Solution
- Step 1: Write the proportion equation
741,620.69 : 1,023,408.12 = 419,337.53 : x - Step 2: Convert to fraction form
741,620.69/1,023,408.12 = 419,337.53/x - Step 3: Cross multiply
741,620.69x = 1,023,408.12 × 419,337.53 - Step 4: Simplify right side
741,620.69x = 429,153,428,105.70 - Step 5: Solve for x
x = 429,153,428,105.70/741,620.69 - Step 6: Final answer
x = 578,669.71
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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.