Finding the Fourth Proportional to 1,979,667.64, 2,731,912.14 and 1,163,963.08
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Solution
The fourth proportional to 1,979,667.64, 2,731,912.14 and 1,163,963.08 is: 1,606,251.88
Step by Step Solution
- Step 1: Write the proportion equation
1,979,667.64 : 2,731,912.14 = 1,163,963.08 : x - Step 2: Convert to fraction form
1,979,667.64/2,731,912.14 = 1,163,963.08/x - Step 3: Cross multiply
1,979,667.64x = 2,731,912.14 × 1,163,963.08 - Step 4: Simplify right side
1,979,667.64x = 3,179,844,868,763.79 - Step 5: Solve for x
x = 3,179,844,868,763.79/1,979,667.64 - Step 6: Final answer
x = 1,606,251.88
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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.