Finding the Fourth Proportional to 2,167,794.90, 2,991,740.67 and 1,201,228.38
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Solution
The fourth proportional to 2,167,794.90, 2,991,740.67 and 1,201,228.38 is: 1,657,796.96
Step by Step Solution
- Step 1: Write the proportion equation
2,167,794.90 : 2,991,740.67 = 1,201,228.38 : x - Step 2: Convert to fraction form
2,167,794.90/2,991,740.67 = 1,201,228.38/x - Step 3: Cross multiply
2,167,794.90x = 2,991,740.67 × 1,201,228.38 - Step 4: Simplify right side
2,167,794.90x = 3,593,763,798,404.21 - Step 5: Solve for x
x = 3,593,763,798,404.21/2,167,794.90 - Step 6: Final answer
x = 1,657,796.96
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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.