Finding the Fourth Proportional to 789,900.42, 1,184,934.06 and 257,463.12
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Solution
The fourth proportional to 789,900.42, 1,184,934.06 and 257,463.12 is: 386,221.87
Step by Step Solution
- Step 1: Write the proportion equation
789,900.42 : 1,184,934.06 = 257,463.12 : x - Step 2: Convert to fraction form
789,900.42/1,184,934.06 = 257,463.12/x - Step 3: Cross multiply
789,900.42x = 1,184,934.06 × 257,463.12 - Step 4: Simplify right side
789,900.42x = 305,076,818,794.55 - Step 5: Solve for x
x = 305,076,818,794.55/789,900.42 - Step 6: Final answer
x = 386,221.87
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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.