Finding the Fourth Proportional to 1,630,847.20, 2,445,104.40 and 731,552.80
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Solution
The fourth proportional to 1,630,847.20, 2,445,104.40 and 731,552.80 is: 1,096,805.99
Step by Step Solution
- Step 1: Write the proportion equation
1,630,847.20 : 2,445,104.40 = 731,552.80 : x - Step 2: Convert to fraction form
1,630,847.20/2,445,104.40 = 731,552.80/x - Step 3: Cross multiply
1,630,847.20x = 2,445,104.40 × 731,552.80 - Step 4: Simplify right side
1,630,847.20x = 1,788,722,970,112.32 - Step 5: Solve for x
x = 1,788,722,970,112.32/1,630,847.20 - Step 6: Final answer
x = 1,096,805.99
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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.