Finding the Fourth Proportional to 719,486.44, 992,899.36 and 397,196.76
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Solution
The fourth proportional to 719,486.44, 992,899.36 and 397,196.76 is: 548,135.99
Step by Step Solution
- Step 1: Write the proportion equation
719,486.44 : 992,899.36 = 397,196.76 : x - Step 2: Convert to fraction form
719,486.44/992,899.36 = 397,196.76/x - Step 3: Cross multiply
719,486.44x = 992,899.36 × 397,196.76 - Step 4: Simplify right side
719,486.44x = 394,376,408,798.07 - Step 5: Solve for x
x = 394,376,408,798.07/719,486.44 - Step 6: Final answer
x = 548,135.99
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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.