Finding the Fourth Proportional to 640,544.24, 883,951.25 and 350,157.08
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Solution
The fourth proportional to 640,544.24, 883,951.25 and 350,157.08 is: 483,216.88
Step by Step Solution
- Step 1: Write the proportion equation
640,544.24 : 883,951.25 = 350,157.08 : x - Step 2: Convert to fraction form
640,544.24/883,951.25 = 350,157.08/x - Step 3: Cross multiply
640,544.24x = 883,951.25 × 350,157.08 - Step 4: Simplify right side
640,544.24x = 309,521,789,021.44 - Step 5: Solve for x
x = 309,521,789,021.44/640,544.24 - Step 6: Final answer
x = 483,216.88
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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.