Finding the Fourth Proportional to 913,932.79, 1,261,226.23 and 511,524.79
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Solution
The fourth proportional to 913,932.79, 1,261,226.23 and 511,524.79 is: 705,903.64
Step by Step Solution
- Step 1: Write the proportion equation
913,932.79 : 1,261,226.23 = 511,524.79 : x - Step 2: Convert to fraction form
913,932.79/1,261,226.23 = 511,524.79/x - Step 3: Cross multiply
913,932.79x = 1,261,226.23 × 511,524.79 - Step 4: Simplify right side
913,932.79x = 645,148,482,443.24 - Step 5: Solve for x
x = 645,148,482,443.24/913,932.79 - Step 6: Final answer
x = 705,903.64
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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.