Finding the Fourth Proportional to 914,245.65, 1,370,107.31 and 689,358.94
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Solution
The fourth proportional to 914,245.65, 1,370,107.31 and 689,358.94 is: 1,033,087.46
Step by Step Solution
- Step 1: Write the proportion equation
914,245.65 : 1,370,107.31 = 689,358.94 : x - Step 2: Convert to fraction form
914,245.65/1,370,107.31 = 689,358.94/x - Step 3: Cross multiply
914,245.65x = 1,370,107.31 × 689,358.94 - Step 4: Simplify right side
914,245.65x = 944,495,716,035.79 - Step 5: Solve for x
x = 944,495,716,035.79/914,245.65 - Step 6: Final answer
x = 1,033,087.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.