Finding the Fourth Proportional to 1,293,418.19, 1,784,972.21 and 720,458.21
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Solution
The fourth proportional to 1,293,418.19, 1,784,972.21 and 720,458.21 is: 994,263.02
Step by Step Solution
- Step 1: Write the proportion equation
1,293,418.19 : 1,784,972.21 = 720,458.21 : x - Step 2: Convert to fraction form
1,293,418.19/1,784,972.21 = 720,458.21/x - Step 3: Cross multiply
1,293,418.19x = 1,784,972.21 × 720,458.21 - Step 4: Simplify right side
1,293,418.19x = 1,285,997,870,789.19 - Step 5: Solve for x
x = 1,285,997,870,789.19/1,293,418.19 - Step 6: Final answer
x = 994,263.02
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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.