Finding the Fourth Proportional to 719,454.91, 992,821.75 and 397,158.08
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Solution
The fourth proportional to 719,454.91, 992,821.75 and 397,158.08 is: 548,063.78
Step by Step Solution
- Step 1: Write the proportion equation
719,454.91 : 992,821.75 = 397,158.08 : x - Step 2: Convert to fraction form
719,454.91/992,821.75 = 397,158.08/x - Step 3: Cross multiply
719,454.91x = 992,821.75 × 397,158.08 - Step 4: Simplify right side
719,454.91x = 394,307,178,026.45 - Step 5: Solve for x
x = 394,307,178,026.45/719,454.91 - Step 6: Final answer
x = 548,063.78
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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.