Finding the Fourth Proportional to 645,006.06, 890,118.99 and 354,629.88
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Solution
The fourth proportional to 645,006.06, 890,118.99 and 354,629.88 is: 489,395.08
Step by Step Solution
- Step 1: Write the proportion equation
645,006.06 : 890,118.99 = 354,629.88 : x - Step 2: Convert to fraction form
645,006.06/890,118.99 = 354,629.88/x - Step 3: Cross multiply
645,006.06x = 890,118.99 × 354,629.88 - Step 4: Simplify right side
645,006.06x = 315,662,790,609.42 - Step 5: Solve for x
x = 315,662,790,609.42/645,006.06 - Step 6: Final answer
x = 489,395.08
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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.