Finding the Fourth Proportional to 719,433.54, 992,747.52 and 397,122.84
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Solution
The fourth proportional to 719,433.54, 992,747.52 and 397,122.84 is: 547,990.46
Step by Step Solution
- Step 1: Write the proportion equation
719,433.54 : 992,747.52 = 397,122.84 : x - Step 2: Convert to fraction form
719,433.54/992,747.52 = 397,122.84/x - Step 3: Cross multiply
719,433.54x = 992,747.52 × 397,122.84 - Step 4: Simplify right side
719,433.54x = 394,242,714,545.36 - Step 5: Solve for x
x = 394,242,714,545.36/719,433.54 - Step 6: Final answer
x = 547,990.46
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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.