Finding the Fourth Proportional to 719,860.84, 993,415.44 and 397,579.12
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Solution
The fourth proportional to 719,860.84, 993,415.44 and 397,579.12 is: 548,663.32
Step by Step Solution
- Step 1: Write the proportion equation
719,860.84 : 993,415.44 = 397,579.12 : x - Step 2: Convert to fraction form
719,860.84/993,415.44 = 397,579.12/x - Step 3: Cross multiply
719,860.84x = 993,415.44 × 397,579.12 - Step 4: Simplify right side
719,860.84x = 394,961,236,429.61 - Step 5: Solve for x
x = 394,961,236,429.61/719,860.84 - Step 6: Final answer
x = 548,663.32
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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.