Finding the Fourth Proportional to 717,014.17, 989,474.16 and 394,729.75
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Solution
The fourth proportional to 717,014.17, 989,474.16 and 394,729.75 is: 544,724.09
Step by Step Solution
- Step 1: Write the proportion equation
717,014.17 : 989,474.16 = 394,729.75 : x - Step 2: Convert to fraction form
717,014.17/989,474.16 = 394,729.75/x - Step 3: Cross multiply
717,014.17x = 989,474.16 × 394,729.75 - Step 4: Simplify right side
717,014.17x = 390,574,887,808.26 - Step 5: Solve for x
x = 390,574,887,808.26/717,014.17 - Step 6: Final answer
x = 544,724.09
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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.