Finding the Fourth Proportional to 1,178,458.08, 1,626,226.28 and 720,339.68
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Solution
The fourth proportional to 1,178,458.08, 1,626,226.28 and 720,339.68 is: 994,040.72
Step by Step Solution
- Step 1: Write the proportion equation
1,178,458.08 : 1,626,226.28 = 720,339.68 : x - Step 2: Convert to fraction form
1,178,458.08/1,626,226.28 = 720,339.68/x - Step 3: Cross multiply
1,178,458.08x = 1,626,226.28 × 720,339.68 - Step 4: Simplify right side
1,178,458.08x = 1,171,435,318,142.79 - Step 5: Solve for x
x = 1,171,435,318,142.79/1,178,458.08 - Step 6: Final answer
x = 994,040.72
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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.