Finding the Fourth Proportional to 2,173,631.40, 2,999,461.50 and 1,206,686.64
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Solution
The fourth proportional to 2,173,631.40, 2,999,461.50 and 1,206,686.64 is: 1,665,144.38
Step by Step Solution
- Step 1: Write the proportion equation
2,173,631.40 : 2,999,461.50 = 1,206,686.64 : x - Step 2: Convert to fraction form
2,173,631.40/2,999,461.50 = 1,206,686.64/x - Step 3: Cross multiply
2,173,631.40x = 2,999,461.50 × 1,206,686.64 - Step 4: Simplify right side
2,173,631.40x = 3,619,410,119,244.36 - Step 5: Solve for x
x = 3,619,410,119,244.36/2,173,631.40 - Step 6: Final answer
x = 1,665,144.38
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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.