Finding the Fourth Proportional to 714,304.76, 985,737.44 and 392,020.08
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Solution
The fourth proportional to 714,304.76, 985,737.44 and 392,020.08 is: 540,985.99
Step by Step Solution
- Step 1: Write the proportion equation
714,304.76 : 985,737.44 = 392,020.08 : x - Step 2: Convert to fraction form
714,304.76/985,737.44 = 392,020.08/x - Step 3: Cross multiply
714,304.76x = 985,737.44 × 392,020.08 - Step 4: Simplify right side
714,304.76x = 386,428,870,087.80 - Step 5: Solve for x
x = 386,428,870,087.80/714,304.76 - Step 6: Final answer
x = 540,985.99
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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.