Finding the Fourth Proportional to 690,707.13, 1,036,226.60 and 264,235.98
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Solution
The fourth proportional to 690,707.13, 1,036,226.60 and 264,235.98 is: 396,417.44
Step by Step Solution
- Step 1: Write the proportion equation
690,707.13 : 1,036,226.60 = 264,235.98 : x - Step 2: Convert to fraction form
690,707.13/1,036,226.60 = 264,235.98/x - Step 3: Cross multiply
690,707.13x = 1,036,226.60 × 264,235.98 - Step 4: Simplify right side
690,707.13x = 273,808,351,153.07 - Step 5: Solve for x
x = 273,808,351,153.07/690,707.13 - Step 6: Final answer
x = 396,417.44
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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.