Finding the Fourth Proportional to 645,329.36, 890,575.08 and 358,861.52
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Solution
The fourth proportional to 645,329.36, 890,575.08 and 358,861.52 is: 495,240.33
Step by Step Solution
- Step 1: Write the proportion equation
645,329.36 : 890,575.08 = 358,861.52 : x - Step 2: Convert to fraction form
645,329.36/890,575.08 = 358,861.52/x - Step 3: Cross multiply
645,329.36x = 890,575.08 × 358,861.52 - Step 4: Simplify right side
645,329.36x = 319,593,126,882.92 - Step 5: Solve for x
x = 319,593,126,882.92/645,329.36 - Step 6: Final answer
x = 495,240.33
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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.