Finding the Fourth Proportional to 645,101.70, 967,652.55 and 330,173.70
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Solution
The fourth proportional to 645,101.70, 967,652.55 and 330,173.70 is: 495,260.55
Step by Step Solution
- Step 1: Write the proportion equation
645,101.70 : 967,652.55 = 330,173.70 : x - Step 2: Convert to fraction form
645,101.70/967,652.55 = 330,173.70/x - Step 3: Cross multiply
645,101.70x = 967,652.55 × 330,173.70 - Step 4: Simplify right side
645,101.70x = 319,493,422,747.94 - Step 5: Solve for x
x = 319,493,422,747.94/645,101.70 - Step 6: Final answer
x = 495,260.55
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Similar ratio
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1.5x scale
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.