Finding the Fourth Proportional to 617,852.70, 926,779.05 and 218,490.30
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Solution
The fourth proportional to 617,852.70, 926,779.05 and 218,490.30 is: 327,735.45
Step by Step Solution
- Step 1: Write the proportion equation
617,852.70 : 926,779.05 = 218,490.30 : x - Step 2: Convert to fraction form
617,852.70/926,779.05 = 218,490.30/x - Step 3: Cross multiply
617,852.70x = 926,779.05 × 218,490.30 - Step 4: Simplify right side
617,852.70x = 202,492,232,668.22 - Step 5: Solve for x
x = 202,492,232,668.22/617,852.70 - Step 6: Final answer
x = 327,735.45
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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.