Finding the Fourth Proportional to 665,701.60, 998,552.40 and 413,759.20
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Solution
The fourth proportional to 665,701.60, 998,552.40 and 413,759.20 is: 620,638.80
Step by Step Solution
- Step 1: Write the proportion equation
665,701.60 : 998,552.40 = 413,759.20 : x - Step 2: Convert to fraction form
665,701.60/998,552.40 = 413,759.20/x - Step 3: Cross multiply
665,701.60x = 998,552.40 × 413,759.20 - Step 4: Simplify right side
665,701.60x = 413,160,242,182.08 - Step 5: Solve for x
x = 413,160,242,182.08/665,701.60 - Step 6: Final answer
x = 620,638.80
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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.