Finding the Fourth Proportional to 465,490.20, 698,235.30 and 288,343.20
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Solution
The fourth proportional to 465,490.20, 698,235.30 and 288,343.20 is: 432,514.80
Step by Step Solution
- Step 1: Write the proportion equation
465,490.20 : 698,235.30 = 288,343.20 : x - Step 2: Convert to fraction form
465,490.20/698,235.30 = 288,343.20/x - Step 3: Cross multiply
465,490.20x = 698,235.30 × 288,343.20 - Step 4: Simplify right side
465,490.20x = 201,331,400,754.96 - Step 5: Solve for x
x = 201,331,400,754.96/465,490.20 - Step 6: Final answer
x = 432,514.80
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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.