Finding the Fourth Proportional to 640,485.34, 960,693.36 and 324,934.05
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Solution
The fourth proportional to 640,485.34, 960,693.36 and 324,934.05 is: 487,383.50
Step by Step Solution
- Step 1: Write the proportion equation
640,485.34 : 960,693.36 = 324,934.05 : x - Step 2: Convert to fraction form
640,485.34/960,693.36 = 324,934.05/x - Step 3: Cross multiply
640,485.34x = 960,693.36 × 324,934.05 - Step 4: Simplify right side
640,485.34x = 312,161,984,272.91 - Step 5: Solve for x
x = 312,161,984,272.91/640,485.34 - Step 6: Final answer
x = 487,383.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.