Finding the Fourth Proportional to 769,923.60, 1,062,475.08 and 430,423.44
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Solution
The fourth proportional to 769,923.60, 1,062,475.08 and 430,423.44 is: 593,973.45
Step by Step Solution
- Step 1: Write the proportion equation
769,923.60 : 1,062,475.08 = 430,423.44 : x - Step 2: Convert to fraction form
769,923.60/1,062,475.08 = 430,423.44/x - Step 3: Cross multiply
769,923.60x = 1,062,475.08 × 430,423.44 - Step 4: Simplify right side
769,923.60x = 457,314,178,847.88 - Step 5: Solve for x
x = 457,314,178,847.88/769,923.60 - Step 6: Final answer
x = 593,973.45
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1.5x scale
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.