Finding the Fourth Proportional to 645,067.19, 890,193.75 and 358,584.77
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Solution
The fourth proportional to 645,067.19, 890,193.75 and 358,584.77 is: 494,847.55
Step by Step Solution
- Step 1: Write the proportion equation
645,067.19 : 890,193.75 = 358,584.77 : x - Step 2: Convert to fraction form
645,067.19/890,193.75 = 358,584.77/x - Step 3: Cross multiply
645,067.19x = 890,193.75 × 358,584.77 - Step 4: Simplify right side
645,067.19x = 319,209,921,099.19 - Step 5: Solve for x
x = 319,209,921,099.19/645,067.19 - Step 6: Final answer
x = 494,847.55
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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.