Finding the Fourth Proportional to 741,775.13, 1,023,649.67 and 402,243.65
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Solution
The fourth proportional to 741,775.13, 1,023,649.67 and 402,243.65 is: 555,096.23
Step by Step Solution
- Step 1: Write the proportion equation
741,775.13 : 1,023,649.67 = 402,243.65 : x - Step 2: Convert to fraction form
741,775.13/1,023,649.67 = 402,243.65/x - Step 3: Cross multiply
741,775.13x = 1,023,649.67 × 402,243.65 - Step 4: Simplify right side
741,775.13x = 411,756,575,469.46 - Step 5: Solve for x
x = 411,756,575,469.46/741,775.13 - Step 6: Final answer
x = 555,096.23
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1.5x scale
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.