Finding the Fourth Proportional to 765,423.36, 1,148,140.80 and 266,787.84
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Solution
The fourth proportional to 765,423.36, 1,148,140.80 and 266,787.84 is: 400,183.77
Step by Step Solution
- Step 1: Write the proportion equation
765,423.36 : 1,148,140.80 = 266,787.84 : x - Step 2: Convert to fraction form
765,423.36/1,148,140.80 = 266,787.84/x - Step 3: Cross multiply
765,423.36x = 1,148,140.80 × 266,787.84 - Step 4: Simplify right side
765,423.36x = 306,310,004,047.87 - Step 5: Solve for x
x = 306,310,004,047.87/765,423.36 - Step 6: Final answer
x = 400,183.77
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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.