Finding the Fourth Proportional to 714,438.92, 986,743.97 and 470,514.08
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Solution
The fourth proportional to 714,438.92, 986,743.97 and 470,514.08 is: 649,848.32
Step by Step Solution
- Step 1: Write the proportion equation
714,438.92 : 986,743.97 = 470,514.08 : x - Step 2: Convert to fraction form
714,438.92/986,743.97 = 470,514.08/x - Step 3: Cross multiply
714,438.92x = 986,743.97 × 470,514.08 - Step 4: Simplify right side
714,438.92x = 464,276,932,990.24 - Step 5: Solve for x
x = 464,276,932,990.24/714,438.92 - Step 6: Final answer
x = 649,848.32
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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.