Finding the Fourth Proportional to 1,289,907.92, 1,934,881.40 and 491,233.68
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Solution
The fourth proportional to 1,289,907.92, 1,934,881.40 and 491,233.68 is: 736,857.95
Step by Step Solution
- Step 1: Write the proportion equation
1,289,907.92 : 1,934,881.40 = 491,233.68 : x - Step 2: Convert to fraction form
1,289,907.92/1,934,881.40 = 491,233.68/x - Step 3: Cross multiply
1,289,907.92x = 1,934,881.40 × 491,233.68 - Step 4: Simplify right side
1,289,907.92x = 950,478,910,485.55 - Step 5: Solve for x
x = 950,478,910,485.55/1,289,907.92 - Step 6: Final answer
x = 736,857.95
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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.