Finding the Fourth Proportional to 3,521,840.40, 4,860,157.68 and 1,994,245.20
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Solution
The fourth proportional to 3,521,840.40, 4,860,157.68 and 1,994,245.20 is: 2,752,068.53
Step by Step Solution
- Step 1: Write the proportion equation
3,521,840.40 : 4,860,157.68 = 1,994,245.20 : x - Step 2: Convert to fraction form
3,521,840.40/4,860,157.68 = 1,994,245.20/x - Step 3: Cross multiply
3,521,840.40x = 4,860,157.68 × 1,994,245.20 - Step 4: Simplify right side
3,521,840.40x = 9,692,346,124,583.14 - Step 5: Solve for x
x = 9,692,346,124,583.14/3,521,840.40 - Step 6: Final answer
x = 2,752,068.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.