Finding the Fourth Proportional to 640,195.22, 960,895.74 and 324,878.42
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Solution
The fourth proportional to 640,195.22, 960,895.74 and 324,878.42 is: 487,623.59
Step by Step Solution
- Step 1: Write the proportion equation
640,195.22 : 960,895.74 = 324,878.42 : x - Step 2: Convert to fraction form
640,195.22/960,895.74 = 324,878.42/x - Step 3: Cross multiply
640,195.22x = 960,895.74 × 324,878.42 - Step 4: Simplify right side
640,195.22x = 312,174,289,795.93 - Step 5: Solve for x
x = 312,174,289,795.93/640,195.22 - Step 6: Final answer
x = 487,623.59
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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.