Finding the Fourth Proportional to 2,878,068.12, 3,971,739.06 and 1,588,910.60
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Solution
The fourth proportional to 2,878,068.12, 3,971,739.06 and 1,588,910.60 is: 2,192,699.42
Step by Step Solution
- Step 1: Write the proportion equation
2,878,068.12 : 3,971,739.06 = 1,588,910.60 : x - Step 2: Convert to fraction form
2,878,068.12/3,971,739.06 = 1,588,910.60/x - Step 3: Cross multiply
2,878,068.12x = 3,971,739.06 × 1,588,910.60 - Step 4: Simplify right side
2,878,068.12x = 6,310,738,292,868.04 - Step 5: Solve for x
x = 6,310,738,292,868.04/2,878,068.12 - Step 6: Final answer
x = 2,192,699.42
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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.