Finding the Fourth Proportional to 719,107.84, 992,362.08 and 396,820.80
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Solution
The fourth proportional to 719,107.84, 992,362.08 and 396,820.80 is: 547,608.99
Step by Step Solution
- Step 1: Write the proportion equation
719,107.84 : 992,362.08 = 396,820.80 : x - Step 2: Convert to fraction form
719,107.84/992,362.08 = 396,820.80/x - Step 3: Cross multiply
719,107.84x = 992,362.08 × 396,820.80 - Step 4: Simplify right side
719,107.84x = 393,789,914,475.26 - Step 5: Solve for x
x = 393,789,914,475.26/719,107.84 - Step 6: Final answer
x = 547,608.99
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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.