Finding the Fourth Proportional to 783,723.28, 1,081,656.28 and 477,977.12
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Solution
The fourth proportional to 783,723.28, 1,081,656.28 and 477,977.12 is: 659,680.49
Step by Step Solution
- Step 1: Write the proportion equation
783,723.28 : 1,081,656.28 = 477,977.12 : x - Step 2: Convert to fraction form
783,723.28/1,081,656.28 = 477,977.12/x - Step 3: Cross multiply
783,723.28x = 1,081,656.28 × 477,977.12 - Step 4: Simplify right side
783,723.28x = 517,006,953,544.31 - Step 5: Solve for x
x = 517,006,953,544.31/783,723.28 - Step 6: Final answer
x = 659,680.49
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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.