Finding the Fourth Proportional to 1,198,171.14, 1,653,689.75 and 708,120.65
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Solution
The fourth proportional to 1,198,171.14, 1,653,689.75 and 708,120.65 is: 977,332.71
Step by Step Solution
- Step 1: Write the proportion equation
1,198,171.14 : 1,653,689.75 = 708,120.65 : x - Step 2: Convert to fraction form
1,198,171.14/1,653,689.75 = 708,120.65/x - Step 3: Cross multiply
1,198,171.14x = 1,653,689.75 × 708,120.65 - Step 4: Simplify right side
1,198,171.14x = 1,171,011,848,859.29 - Step 5: Solve for x
x = 1,171,011,848,859.29/1,198,171.14 - Step 6: Final answer
x = 977,332.71
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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.