Finding the Fourth Proportional to 640,484.34, 960,691.86 and 324,933.05
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Solution
The fourth proportional to 640,484.34, 960,691.86 and 324,933.05 is: 487,381.99
Step by Step Solution
- Step 1: Write the proportion equation
640,484.34 : 960,691.86 = 324,933.05 : x - Step 2: Convert to fraction form
640,484.34/960,691.86 = 324,933.05/x - Step 3: Cross multiply
640,484.34x = 960,691.86 × 324,933.05 - Step 4: Simplify right side
640,484.34x = 312,160,531,376.51 - Step 5: Solve for x
x = 312,160,531,376.51/640,484.34 - Step 6: Final answer
x = 487,381.99
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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.