Finding the Fourth Proportional to 657,145.70, 986,107.35 and 433,153.70
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Solution
The fourth proportional to 657,145.70, 986,107.35 and 433,153.70 is: 649,986.83
Step by Step Solution
- Step 1: Write the proportion equation
657,145.70 : 986,107.35 = 433,153.70 : x - Step 2: Convert to fraction form
657,145.70/986,107.35 = 433,153.70/x - Step 3: Cross multiply
657,145.70x = 986,107.35 × 433,153.70 - Step 4: Simplify right side
657,145.70x = 427,136,047,249.70 - Step 5: Solve for x
x = 427,136,047,249.70/657,145.70 - Step 6: Final answer
x = 649,986.83
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1.5x scale
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.