Finding the Fourth Proportional to 2,168,135.22, 2,991,901.62 and 1,201,207.85
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Solution
The fourth proportional to 2,168,135.22, 2,991,901.62 and 1,201,207.85 is: 1,657,597.59
Step by Step Solution
- Step 1: Write the proportion equation
2,168,135.22 : 2,991,901.62 = 1,201,207.85 : x - Step 2: Convert to fraction form
2,168,135.22/2,991,901.62 = 1,201,207.85/x - Step 3: Cross multiply
2,168,135.22x = 2,991,901.62 × 1,201,207.85 - Step 4: Simplify right side
2,168,135.22x = 3,593,895,712,371.72 - Step 5: Solve for x
x = 3,593,895,712,371.72/2,168,135.22 - Step 6: Final answer
x = 1,657,597.59
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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.